{"title":"Arc Audio Subwoofers","description":"","products":[{"product_id":"arc-audio-a10-subwoofer","title":"Arc Audio A10 10-Inch Subwoofer","description":"\u003cstyle\u003e\n  .arc-wrap { max-width: 100%; font-family: inherit; color: #e4e4e7 !important; }\n  .arc-hero { background: #18181b !important; border: 1px solid #3f3f46 !important; color: #ffffff !important; padding: 36px 28px; border-radius: 12px; margin-bottom: 28px; border-bottom: 4px solid #d71920 !important; }\n  .arc-eyebrow { color: #c8ccd0 !important; font-size: 13px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; margin: 0 0 10px 0; }\n  .arc-hero h2 { color: #ffffff !important; font-size: 28px; margin: 0 0 8px 0; line-height: 1.2; }\n  .arc-hero p { color: #f4f4f5 !important; font-size: 16px; margin: 0 0 18px 0; }\n  .arc-badges { display: flex; flex-wrap: wrap; gap: 8px; }\n  .arc-badge { background: #d71920 !important; color: #ffffff !important; font-size: 13px; font-weight: 600; padding: 6px 12px; border-radius: 4px; }\n  .arc-badge-alt { background: #27272a !important; color: #ffffff !important; border: 1px solid #c8ccd0 !important; }\n  .arc-wrap h3 { color: #ffffff !important; font-size: 22px; margin: 28px 0 12px 0; border-left: 4px solid #d71920 !important; padding-left: 12px; }\n  .arc-wrap h4 { color: #f04657 !important; font-size: 17px; margin: 20px 0 8px 0; }\n  .arc-wrap p { color: #e4e4e7 !important; font-size: 16px; line-height: 1.65; margin: 0 0 14px 0; }\n  .arc-callout { background: #27272a !important; border: 1px solid #c8ccd0 !important; border-radius: 8px; padding: 18px 20px; margin: 22px 0; }\n  .arc-callout p { color: #f4f4f5 !important; margin: 0; }\n  .arc-statgrid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin: 22px 0; }\n  .arc-stat { background: #18181b !important; border: 1px solid #3f3f46 !important; border-radius: 8px; padding: 16px; text-align: center; }\n  .arc-stat .arc-statnum { color: #ffffff !important; font-size: 22px; font-weight: 700; display: block; }\n  .arc-stat .arc-statlabel { color: #c8ccd0 !important; font-size: 12px; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; display: block; margin-top: 4px; }\n  .arc-cta { background: #18181b !important; border: 1px solid #3f3f46 !important; color: #ffffff !important; padding: 28px; border-radius: 12px; margin-top: 30px; text-align: center; border-top: 4px solid #d71920 !important; }\n  .arc-cta h3 { color: #ffffff !important; border-left: none !important; padding-left: 0; margin-top: 0; }\n  .arc-cta p { color: #f4f4f5 !important; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"arc-wrap\"\u003e\n\n  \u003cdiv class=\"arc-hero\"\u003e\n    \u003cp class=\"arc-eyebrow\"\u003eArc Audio A-Series Shallow-Mount Subwoofers\u003c\/p\u003e\n    \u003ch2\u003eArc Audio A10 10 Inch Subwoofer\u003c\/h2\u003e\n    \u003cp\u003eShallow-mount performance without shallow-mount compromise. The A10 fits where standard subwoofers cannot, built with premium materials that earn the A-Series its place in Arc Audio's lineup.\u003c\/p\u003e\n    \u003cdiv class=\"arc-badges\"\u003e\n      \u003cspan class=\"arc-badge\"\u003e250W RMS\u003c\/span\u003e\n      \u003cspan class=\"arc-badge\"\u003e500W Peak\u003c\/span\u003e\n      \u003cspan class=\"arc-badge\"\u003e3.77 in Mounting Depth\u003c\/span\u003e\n      \u003cspan class=\"arc-badge arc-badge-alt\"\u003eDual 2 or Dual 4 Ohm\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003ch3\u003eShallow-Mount Built Properly\u003c\/h3\u003e\n  \u003cp\u003eThe Arc Audio A10 was designed specifically for installations where depth is the hard constraint: under rear seats in trucks and SUVs, behind front seats in sports cars and extended cabs, custom shallow enclosures, spare tire well conversions. At 3.77 inches of mounting depth, it opens locations that a standard 5.5 inch subwoofer cannot reach.\u003c\/p\u003e\n  \u003cp\u003eThe distinction from a budget shallow-mount is how Arc Audio built it. A Totoku copper wire voice coil imported from Japan, a spun-laced Nomex composite former, a progressive polycotton Nomex-blend spider, and all bonding surfaces laser-etched and primed before adhesion. These are not cosmetic details; they are why the A10 handles 250 watts RMS continuously in a package less than 4.25 inches tall.\u003c\/p\u003e\n\n  \u003cdiv class=\"arc-statgrid\"\u003e\n    \u003cdiv class=\"arc-stat\"\u003e\n\u003cspan class=\"arc-statnum\"\u003e3.77 in\u003c\/span\u003e\u003cspan class=\"arc-statlabel\"\u003eMounting Depth\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"arc-stat\"\u003e\n\u003cspan class=\"arc-statnum\"\u003e250W\u003c\/span\u003e\u003cspan class=\"arc-statlabel\"\u003eRMS Power\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"arc-stat\"\u003e\n\u003cspan class=\"arc-statnum\"\u003e8mm\u003c\/span\u003e\u003cspan class=\"arc-statlabel\"\u003eXmax\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"arc-stat\"\u003e\n\u003cspan class=\"arc-statnum\"\u003e0.85\u003c\/span\u003e\u003cspan class=\"arc-statlabel\"\u003eCu Ft Optimum (Gross)\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003ch3\u003eA-Series vs. ARC Series: Different Problems, Different Solutions\u003c\/h3\u003e\n  \u003cp\u003eThe A10 and the ARC Series 10 both handle 250 watts RMS and carry the same price. The difference is what each driver is designed for. The ARC Series 10 is a 5.5 inch deep standard driver with 16mm Xmax, built for balanced linear performance in conventional sealed enclosures. The A10 is a 3.77 inch shallow driver with 8mm Xmax, built for installations where the ARC 10 will not physically fit.\u003c\/p\u003e\n  \u003cp\u003eThe choice is not about which is better; it is about which one solves your specific installation constraint. If you have 5.5 inches of mounting depth, the ARC Series 10 gives you more excursion capability and a broader range of enclosure options. If you have 4 inches or less, the A10 is the answer.\u003c\/p\u003e\n\n  \u003ch3\u003eBuilt for the Installation, Not the Spec Sheet\u003c\/h3\u003e\n  \u003cp\u003eThe A10 uses a progressive heat-pressed poly-injected pulp cone for low mass and consistent acoustic behavior across a wide range of listening levels. The UV grade polyether surround resists degradation from ultraviolet exposure, humidity, and temperature cycling, which matters in vehicles with significant sun exposure or temperature swings. The multi-point geometric basket design controls resonances in the motor and basket structure that would otherwise color the bass response and waste acoustic energy.\u003c\/p\u003e\n\n  \u003cdiv class=\"arc-callout\"\u003e\n    \u003cp\u003e\u003cstrong\u003eFitment at a glance:\u003c\/strong\u003e mounting depth 3.77 inches, cutout 9-1\/16 inches, outside diameter 10.08 inches, total depth 4.24 inches. Plan for a minimum of 4.25 to 4.5 inches of internal enclosure height to allow rear clearance for the motor assembly. Arc Audio publishes enclosure volumes as gross (external) dimensions; see the enclosure performance section below for calculated alignments at each recommended volume.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003ch3\u003eBuilt and Backed\u003c\/h3\u003e\n  \u003cp\u003eDesigned and engineered in the USA. Every Arc Audio A10 sold by Audio Intensity is brand new and carries the Arc Audio 1-year warranty through authorized dealers.\u003c\/p\u003e\n\n  \u003cdiv class=\"arc-cta\"\u003e\n    \u003ch3\u003eAuthorized Arc Audio Dealer\u003c\/h3\u003e\n    \u003cp\u003eAudio Intensity ships the Arc Audio A10 fast from Tullahoma, Tennessee, with real installer support before and after the sale. Tell us your vehicle, your available space, and your amplifier and we will help you get the enclosure and the wiring right for your install.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003cstyle\u003e\n  .arc-enc { max-width: 100%; font-family: inherit; }\n  .arc-enc h3 { color: #ffffff !important; font-size: 22px; margin: 28px 0 12px 0; border-left: 4px solid #d71920 !important; padding-left: 12px; }\n  .arc-enc p { color: #e4e4e7 !important; font-size: 16px; line-height: 1.65; margin: 0 0 14px 0; }\n  .arc-enc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 20px 0; }\n  @media (max-width: 640px) { .arc-enc-grid { grid-template-columns: 1fr; } }\n  .arc-enc-card { background: #18181b !important; border: 1px solid #3f3f46 !important; border-radius: 10px; overflow: hidden; }\n  .arc-enc-card-head { background: #d71920 !important; color: #ffffff !important; padding: 10px 16px; font-size: 12px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; }\n  .arc-enc-table { width: 100%; border-collapse: collapse; }\n  .arc-enc-table th { background: #27272a !important; color: #c8ccd0 !important; font-size: 12px; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; padding: 8px 12px; text-align: left; }\n  .arc-enc-table td { padding: 10px 12px; border-bottom: 1px solid #27272a !important; font-size: 14px; }\n  .arc-enc-table td:first-child { color: #e4e4e7 !important; font-weight: 600; }\n  .arc-enc-table td:not(:first-child) { color: #ffffff !important; text-align: center; }\n  .arc-enc-table tr:last-child td { border-bottom: none !important; }\n  .arc-enc-table .arc-optimal td { background: #1a2a1a !important; }\n  .arc-enc-table .arc-optimal td:first-child { color: #4ade80 !important; }\n  .arc-char { font-size: 11px; color: #a1a1aa !important; display: block; font-weight: 400; margin-top: 2px; }\n  .arc-graph-wrap { background: #18181b !important; border: 1px solid #3f3f46 !important; border-radius: 10px; padding: 16px; margin: 16px 0; }\n  .arc-graph-title { color: #c8ccd0 !important; font-size: 12px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; margin: 0 0 10px 0; }\n  .arc-graph-legend { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 10px; }\n  .arc-graph-legend-item { display: flex; align-items: center; gap: 6px; font-size: 12px; color: #a1a1aa !important; }\n  .arc-graph-legend-swatch { width: 24px; height: 3px; border-radius: 2px; display: inline-block; }\n  .arc-enc-note { background: #27272a !important; border: 1px solid #3f3f46 !important; border-radius: 8px; padding: 16px 18px; margin: 18px 0 0 0; }\n  .arc-enc-note p { color: #e4e4e7 !important; font-size: 14px; margin: 0; line-height: 1.6; }\n  .arc-enc-link { color: #f04657 !important; text-decoration: underline; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"arc-enc\"\u003e\n  \u003ch3\u003eSealed Enclosure Performance: Pre-Calculated Results\u003c\/h3\u003e\n  \u003cp\u003eUsing Arc Audio's published Thiele-Small parameters and their recommended sealed volumes, here are the predicted Qtc, system resonance (Fc), and F3 rolloff for each box size. Arc Audio publishes the A10 enclosure volumes as gross (external) dimensions. Net internal volume will be smaller after accounting for panel thickness and driver displacement. Calculated using the same formulas as the Audio Intensity Sealed Box Calculator.\u003c\/p\u003e\n  \u003cp\u003eOne important note specific to this driver: the A10 has 8mm of one-way Xmax, which is less than the ARC Series 10 at 16mm. The frequency response curves show the theoretical sealed alignment, but maximum clean output before excursion limiting will be lower than a deeper-mount driver at the same enclosure tuning. Plan amplifier power accordingly and set gains conservatively.\u003c\/p\u003e\n\n  \u003cdiv class=\"arc-enc-grid\"\u003e\n    \u003cdiv class=\"arc-enc-card\"\u003e\n      \u003cdiv class=\"arc-enc-card-head\"\u003eD2 — Dual 2 Ohm  |  Qts 0.511  |  Fs 26.995 Hz  |  Vas 40.413 L\u003c\/div\u003e\n      \u003ctable class=\"arc-enc-table\"\u003e\n        \u003ctr\u003e\n\u003cth\u003eBox Volume (Gross)\u003c\/th\u003e\n\u003cth\u003eQtc\u003c\/th\u003e\n\u003cth\u003eFc\u003c\/th\u003e\n\u003cth\u003eF3\u003c\/th\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e0.65 cu ft\u003cspan class=\"arc-char\"\u003eMinimum \/ tightest\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e0.913\u003c\/td\u003e\n\u003ctd\u003e48.3 Hz\u003c\/td\u003e\n\u003ctd\u003e39.7 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr class=\"arc-optimal\"\u003e\n\u003ctd\u003e0.85 cu ft ★\u003cspan class=\"arc-char\"\u003eOptimum (Arc recommended)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e0.836\u003c\/td\u003e\n\u003ctd\u003e44.2 Hz\u003c\/td\u003e\n\u003ctd\u003e38.4 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e1.1 cu ft\u003cspan class=\"arc-char\"\u003eMaximum \/ most relaxed\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e0.775\u003c\/td\u003e\n\u003ctd\u003e40.9 Hz\u003c\/td\u003e\n\u003ctd\u003e37.7 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"arc-enc-card\"\u003e\n      \u003cdiv class=\"arc-enc-card-head\"\u003eD4 — Dual 4 Ohm  |  Qts 0.547  |  Fs 26.995 Hz  |  Vas 41.819 L\u003c\/div\u003e\n      \u003ctable class=\"arc-enc-table\"\u003e\n        \u003ctr\u003e\n\u003cth\u003eBox Volume (Gross)\u003c\/th\u003e\n\u003cth\u003eQtc\u003c\/th\u003e\n\u003cth\u003eFc\u003c\/th\u003e\n\u003cth\u003eF3\u003c\/th\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e0.65 cu ft\u003cspan class=\"arc-char\"\u003eMinimum \/ tightest\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e0.989\u003c\/td\u003e\n\u003ctd\u003e48.8 Hz\u003c\/td\u003e\n\u003ctd\u003e38.6 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr class=\"arc-optimal\"\u003e\n\u003ctd\u003e0.85 cu ft ★\u003cspan class=\"arc-char\"\u003eOptimum (Arc recommended)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e0.905\u003c\/td\u003e\n\u003ctd\u003e44.7 Hz\u003c\/td\u003e\n\u003ctd\u003e36.9 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e1.1 cu ft\u003cspan class=\"arc-char\"\u003eMaximum \/ most relaxed\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e0.837\u003c\/td\u003e\n\u003ctd\u003e41.3 Hz\u003c\/td\u003e\n\u003ctd\u003e35.9 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"arc-enc-grid\"\u003e\n    \u003cdiv class=\"arc-graph-wrap\"\u003e\n      \u003cp 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363.1,51.4 364.3,51.4 365.5,51.5 366.7,51.5 368.0,51.5 369.2,51.5 370.4,51.5 371.7,51.5 372.9,51.5 374.1,51.5 375.3,51.5 376.6,51.5 377.8,51.5 379.0,51.6 380.2,51.6 381.5,51.6 382.7,51.6 383.9,51.6 385.1,51.6 386.4,51.6 387.6,51.6 388.8,51.6 390.1,51.6 391.3,51.6 392.5,51.6 393.7,51.6 395.0,51.7 396.2,51.7 397.4,51.7 398.6,51.7 399.9,51.7 401.1,51.7 402.3,51.7 403.5,51.7 404.8,51.7 406.0,51.7\" fill=\"none\" stroke=\"#60a5fa\" stroke-width=\"1.5\" stroke-linejoin=\"round\" stroke-dasharray=\"5 3\"\u003e\u003c\/polyline\u003e\n\u003c\/svg\u003e\n      \u003cdiv class=\"arc-graph-legend\"\u003e\n        \u003cspan class=\"arc-graph-legend-item\"\u003e\u003cspan class=\"arc-graph-legend-swatch\" style=\"background:#ef4444;\"\u003e\u003c\/span\u003e0.65 cu ft (Qtc 0.989)\u003c\/span\u003e\n        \u003cspan class=\"arc-graph-legend-item\"\u003e\u003cspan class=\"arc-graph-legend-swatch\" style=\"background:#4ade80;\"\u003e\u003c\/span\u003e0.85 cu ft (Qtc 0.905) ★\u003c\/span\u003e\n        \u003cspan class=\"arc-graph-legend-item\"\u003e\u003cspan class=\"arc-graph-legend-swatch\" style=\"background:#60a5fa;\"\u003e\u003c\/span\u003e1.1 cu ft (Qtc 0.837)\u003c\/span\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"arc-enc-note\"\u003e\n    \u003cp\u003e\u003cstrong style=\"color:#ffffff !important;\"\u003eWhat the numbers mean:\u003c\/strong\u003e The A10 runs in the warm to slightly punchy sealed zone across all three volumes. Qtc values from 0.775 to 0.913 (D2) and 0.837 to 0.989 (D4) produce full-sounding bass with a gentle midbass lift. F3 falls in the 37 to 40 Hz range, solid deep bass extension for a shallow-mount 10. Remember that Arc publishes these volumes as gross (external) dimensions, so actual net internal volume will be somewhat smaller. Also note the A10's 8mm Xmax is half that of the ARC Series 10, which means maximum undistorted output is lower; the sealed alignment shown here is the frequency response shape, not an output level guarantee at high excursion. Vehicle cabin gain below 80 Hz adds 6 to 12 dB in practice. \u003ca class=\"arc-enc-link\" href=\"\/pages\/sealed-box-calculator\"\u003eRun your own numbers in the Sealed Box Calculator.\u003c\/a\u003e\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #18181b !important; border: 1px solid #3f3f46 !important; border-radius: 8px; padding: 16px 20px; margin: 24px 0;\"\u003e\n  \u003cp style=\"color: #e4e4e7 !important; font-size: 15px; margin: 0; line-height: 1.6;\"\u003eReady to build? The \u003cstrong style=\"color: #ffffff !important;\"\u003eEnclosures tab above\u003c\/strong\u003e lists the Arc Audio A10 subwoofer system and Proline X enclosures that pair with this driver, CNC-cut in Tullahoma, Tennessee.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Arc Audio","offers":[{"title":"Dual 2 Ohm","offer_id":40310168977497,"sku":"A10 D2","price":298.0,"currency_code":"USD","in_stock":true},{"title":"Dual 4 Ohm","offer_id":40310169010265,"sku":"A10 D4","price":298.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/products\/arc-audio-a10-10-subwoofersubwooferarc-audio-867640.jpg?v=1761969117"},{"product_id":"arc-audio-arc-series-10","title":"Arc Audio Arc Series 10 inch Subwoofer","description":"\u003cstyle\u003e\n  .arc-wrap { max-width: 100%; font-family: inherit; color: #e4e4e7 !important; }\n  .arc-hero { background: #18181b !important; border: 1px solid #3f3f46 !important; color: #ffffff !important; padding: 36px 28px; border-radius: 12px; margin-bottom: 28px; border-bottom: 4px solid #d71920 !important; }\n  .arc-eyebrow { color: #c8ccd0 !important; font-size: 13px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; margin: 0 0 10px 0; }\n  .arc-hero h2 { color: #ffffff !important; font-size: 28px; margin: 0 0 8px 0; line-height: 1.2; }\n  .arc-hero p { color: #f4f4f5 !important; font-size: 16px; margin: 0 0 18px 0; }\n  .arc-badges { display: flex; flex-wrap: wrap; gap: 8px; }\n  .arc-badge { background: #d71920 !important; color: #ffffff !important; font-size: 13px; font-weight: 600; padding: 6px 12px; border-radius: 4px; }\n  .arc-badge-alt { background: #27272a !important; color: #ffffff !important; border: 1px solid #c8ccd0 !important; }\n  .arc-wrap h3 { color: #ffffff !important; font-size: 22px; margin: 28px 0 12px 0; border-left: 4px solid #d71920 !important; padding-left: 12px; }\n  .arc-wrap h4 { color: #f04657 !important; font-size: 17px; margin: 20px 0 8px 0; }\n  .arc-wrap p { color: #e4e4e7 !important; font-size: 16px; line-height: 1.65; margin: 0 0 14px 0; }\n  .arc-callout { background: #27272a !important; border: 1px solid #c8ccd0 !important; border-radius: 8px; padding: 18px 20px; margin: 22px 0; }\n  .arc-callout p { color: #f4f4f5 !important; margin: 0; }\n  .arc-statgrid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin: 22px 0; }\n  .arc-stat { background: #18181b !important; border: 1px solid #3f3f46 !important; border-radius: 8px; padding: 16px; text-align: center; }\n  .arc-stat .arc-statnum { color: #ffffff !important; font-size: 22px; font-weight: 700; display: block; }\n  .arc-stat .arc-statlabel { color: #c8ccd0 !important; font-size: 12px; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; display: block; margin-top: 4px; }\n  .arc-cta { background: #18181b !important; border: 1px solid #3f3f46 !important; color: #ffffff !important; padding: 28px; border-radius: 12px; margin-top: 30px; text-align: center; border-top: 4px solid #d71920 !important; }\n  .arc-cta h3 { color: #ffffff !important; border-left: none !important; padding-left: 0; margin-top: 0; }\n  .arc-cta p { color: #f4f4f5 !important; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"arc-wrap\"\u003e\n\n  \u003cdiv class=\"arc-hero\"\u003e\n    \u003cp class=\"arc-eyebrow\"\u003eArc Audio ARC Series Subwoofers\u003c\/p\u003e\n    \u003ch2\u003eArc Audio ARC Series 10 Inch Subwoofer\u003c\/h2\u003e\n    \u003cp\u003eThe step up in the ARC family. A 10 inch linear design driver with 250 watts RMS, 87 dB sensitivity, and a near-Butterworth sealed alignment in a moderate-sized enclosure. More output, same Arc Audio accuracy.\u003c\/p\u003e\n    \u003cdiv class=\"arc-badges\"\u003e\n      \u003cspan class=\"arc-badge\"\u003e250W RMS\u003c\/span\u003e\n      \u003cspan class=\"arc-badge\"\u003e500W Peak\u003c\/span\u003e\n      \u003cspan class=\"arc-badge\"\u003eDual 2 or Dual 4 Ohm\u003c\/span\u003e\n      \u003cspan class=\"arc-badge arc-badge-alt\"\u003e87 dB Sensitivity\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003ch3\u003eMore Cone, Same Philosophy\u003c\/h3\u003e\n  \u003cp\u003eThe Arc Audio ARC Series 10 inch subwoofer handles 250 watts RMS and 500 watts maximum across a recommended amplifier range of 5 to 500 watts. It uses the same linear design approach as the ARC Series 8, maintaining consistent mechanical and electrical behavior across the full excursion range, but with a larger cone area and higher sensitivity that translates directly to more output at the same amplifier power.\u003c\/p\u003e\n  \u003cp\u003eAt 87 dB sensitivity, the ARC 10 produces measurably more output per watt than the ARC 8, and the 16mm one-way Xmax gives it real excursion capability in the moderate sealed volumes it is designed for. Sealed, ported, and infinite baffle applications are all supported by the driver's Thiele-Small parameters.\u003c\/p\u003e\n\n  \u003cdiv class=\"arc-statgrid\"\u003e\n    \u003cdiv class=\"arc-stat\"\u003e\n\u003cspan class=\"arc-statnum\"\u003e250W\u003c\/span\u003e\u003cspan class=\"arc-statlabel\"\u003eRMS Power\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"arc-stat\"\u003e\n\u003cspan class=\"arc-statnum\"\u003e87 dB\u003c\/span\u003e\u003cspan class=\"arc-statlabel\"\u003eSensitivity\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"arc-stat\"\u003e\n\u003cspan class=\"arc-statnum\"\u003e16mm\u003c\/span\u003e\u003cspan class=\"arc-statlabel\"\u003eXmax\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"arc-stat\"\u003e\n\u003cspan class=\"arc-statnum\"\u003e0.75\u003c\/span\u003e\u003cspan class=\"arc-statlabel\"\u003eCu Ft Optimal\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003ch3\u003eLinear Design for Accuracy at Every Volume Level\u003c\/h3\u003e\n  \u003cp\u003eThe ARC Series 10 carries the full Arc Audio linear design feature set: high-temperature black anodized voice coil, one-piece molded rubber surround, progressive flat layered spider with integrated tinsel leads, and stamped steel basket. These are not marketing descriptions, each one serves the core goal of keeping the driver's behavior consistent and predictable regardless of how hard it is playing.\u003c\/p\u003e\n  \u003cp\u003eThe rubber surround is the durability standout. It will not deteriorate with temperature cycling or UV exposure the way foam surrounds do, which means the driver's parameters stay stable over years of use, not just when it is new.\u003c\/p\u003e\n\n  \u003ch3\u003eChoose Your Voice Coil: D2 or D4\u003c\/h3\u003e\n  \u003cp\u003eThe D2 wires to 1 ohm or 4 ohms, the D4 wires to 2 ohms or 8 ohms. The T\/S parameters differ between variants, meaning the sealed box alignment and sonic character differ as well. The D2 lands very close to Butterworth in the optimal 0.75 cubic foot volume, a flat, controlled, accurate alignment. The D4 runs a bit warmer at the same volume. The enclosure performance section below shows the full picture for both.\u003c\/p\u003e\n\n  \u003cdiv class=\"arc-callout\"\u003e\n    \u003cp\u003e\u003cstrong\u003eFitment at a glance:\u003c\/strong\u003e mounting depth 5.5 inches, cutout 9-1\/8 inches. Recommended sealed volume is 0.65 to 0.90 cubic feet with 0.75 as the optimal. Arc Audio also lists this driver as suitable for ported and infinite baffle applications.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003ch3\u003eBuilt and Backed\u003c\/h3\u003e\n  \u003cp\u003eDesigned and engineered in the USA. Every Arc Audio ARC Series 10 sold by Audio Intensity is brand new and carries the Arc Audio 1-year warranty through authorized dealers.\u003c\/p\u003e\n\n  \u003cdiv class=\"arc-cta\"\u003e\n    \u003ch3\u003eAuthorized Arc Audio Dealer\u003c\/h3\u003e\n    \u003cp\u003eAudio Intensity ships the Arc Audio ARC Series 10 fast from Tullahoma, Tennessee, with real installer support before and after the sale. Tell us your amplifier and your space and we will help you pick the right voice coil and the right enclosure.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003cstyle\u003e\n  .arc-enc { max-width: 100%; font-family: inherit; }\n  .arc-enc h3 { color: #ffffff !important; font-size: 22px; margin: 28px 0 12px 0; border-left: 4px solid #d71920 !important; padding-left: 12px; }\n  .arc-enc p { color: #e4e4e7 !important; font-size: 16px; line-height: 1.65; margin: 0 0 14px 0; }\n  .arc-enc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 20px 0; }\n  @media (max-width: 640px) { .arc-enc-grid { grid-template-columns: 1fr; } }\n  .arc-enc-card { background: #18181b !important; border: 1px solid #3f3f46 !important; border-radius: 10px; overflow: hidden; }\n  .arc-enc-card-head { background: #d71920 !important; color: #ffffff !important; padding: 10px 16px; font-size: 12px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; }\n  .arc-enc-table { width: 100%; border-collapse: collapse; }\n  .arc-enc-table th { background: #27272a !important; color: #c8ccd0 !important; font-size: 12px; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; padding: 8px 12px; text-align: left; }\n  .arc-enc-table td { padding: 10px 12px; border-bottom: 1px solid #27272a !important; font-size: 14px; }\n  .arc-enc-table td:first-child { color: #e4e4e7 !important; font-weight: 600; }\n  .arc-enc-table td:not(:first-child) { color: #ffffff !important; text-align: center; }\n  .arc-enc-table tr:last-child td { border-bottom: none !important; }\n  .arc-enc-table .arc-optimal td { background: #1a2a1a !important; }\n  .arc-enc-table .arc-optimal td:first-child { color: #4ade80 !important; }\n  .arc-char { font-size: 11px; color: #a1a1aa !important; display: block; font-weight: 400; margin-top: 2px; }\n  .arc-graph-wrap { background: #18181b !important; border: 1px solid #3f3f46 !important; border-radius: 10px; padding: 16px; margin: 16px 0; }\n  .arc-graph-title { color: #c8ccd0 !important; font-size: 12px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; margin: 0 0 10px 0; }\n  .arc-graph-legend { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 10px; }\n  .arc-graph-legend-item { display: flex; align-items: center; gap: 6px; font-size: 12px; color: #a1a1aa !important; }\n  .arc-graph-legend-swatch { width: 24px; height: 3px; border-radius: 2px; display: inline-block; }\n  .arc-enc-note { background: #27272a !important; border: 1px solid #3f3f46 !important; border-radius: 8px; padding: 16px 18px; margin: 18px 0 0 0; }\n  .arc-enc-note p { color: #e4e4e7 !important; font-size: 14px; margin: 0; line-height: 1.6; }\n  .arc-enc-link { color: #f04657 !important; text-decoration: underline; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"arc-enc\"\u003e\n  \u003ch3\u003eSealed Enclosure Performance: Pre-Calculated Results\u003c\/h3\u003e\n  \u003cp\u003eUsing Arc Audio's published Thiele-Small parameters and their recommended sealed volumes, here are the predicted Qtc, system resonance (Fc), F3 rolloff, and frequency response for each box size. Calculated using the same formulas as the Audio Intensity Sealed Box Calculator.\u003c\/p\u003e\n  \u003cp\u003eThe ARC Series 10 D2 is a low-Qts driver that produces an exceptionally flat sealed alignment across all recommended volumes, ranging from near-Butterworth at the minimum volume down to an extended, well-controlled response at the maximum. The D4 runs slightly warmer but remains in the well-controlled zone throughout. Both variants produce meaningful deep bass extension well below 45 Hz.\u003c\/p\u003e\n\n  \u003cdiv class=\"arc-enc-grid\"\u003e\n    \u003cdiv class=\"arc-enc-card\"\u003e\n      \u003cdiv class=\"arc-enc-card-head\"\u003eD2 — Dual 2 Ohm  |  Qts 0.390  |  Fs 23.8 Hz  |  Vas 45.75 L\u003c\/div\u003e\n      \u003ctable class=\"arc-enc-table\"\u003e\n        \u003ctr\u003e\n\u003cth\u003eBox Volume\u003c\/th\u003e\n\u003cth\u003eQtc\u003c\/th\u003e\n\u003cth\u003eFc\u003c\/th\u003e\n\u003cth\u003eF3\u003c\/th\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e0.65 cu ft\u003cspan class=\"arc-char\"\u003eMinimum \/ tightest\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e0.728\u003c\/td\u003e\n\u003ctd\u003e44.4 Hz\u003c\/td\u003e\n\u003ctd\u003e43.2 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr class=\"arc-optimal\"\u003e\n\u003ctd\u003e0.75 cu ft ★\u003cspan class=\"arc-char\"\u003eOptimal (Arc recommended)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e0.693\u003c\/td\u003e\n\u003ctd\u003e42.3 Hz\u003c\/td\u003e\n\u003ctd\u003e43.2 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e0.90 cu ft\u003cspan class=\"arc-char\"\u003eMaximum \/ most relaxed\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e0.652\u003c\/td\u003e\n\u003ctd\u003e39.8 Hz\u003c\/td\u003e\n\u003ctd\u003e43.4 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"arc-enc-card\"\u003e\n      \u003cdiv class=\"arc-enc-card-head\"\u003eD4 — Dual 4 Ohm  |  Qts 0.443  |  Fs 22.8 Hz  |  Vas 48.37 L\u003c\/div\u003e\n      \u003ctable class=\"arc-enc-table\"\u003e\n        \u003ctr\u003e\n\u003cth\u003eBox Volume\u003c\/th\u003e\n\u003cth\u003eQtc\u003c\/th\u003e\n\u003cth\u003eFc\u003c\/th\u003e\n\u003cth\u003eF3\u003c\/th\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e0.65 cu ft\u003cspan class=\"arc-char\"\u003eMinimum \/ tightest\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e0.844\u003c\/td\u003e\n\u003ctd\u003e43.4 Hz\u003c\/td\u003e\n\u003ctd\u003e37.5 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr class=\"arc-optimal\"\u003e\n\u003ctd\u003e0.75 cu ft ★\u003cspan class=\"arc-char\"\u003eOptimal (Arc recommended)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e0.802\u003c\/td\u003e\n\u003ctd\u003e41.3 Hz\u003c\/td\u003e\n\u003ctd\u003e37.0 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e0.90 cu ft\u003cspan class=\"arc-char\"\u003eMaximum \/ most relaxed\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e0.754\u003c\/td\u003e\n\u003ctd\u003e38.8 Hz\u003c\/td\u003e\n\u003ctd\u003e36.5 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"arc-enc-grid\"\u003e\n    \u003cdiv class=\"arc-graph-wrap\"\u003e\n      \u003cp class=\"arc-graph-title\"\u003eD2 Frequency Response — Sealed\u003c\/p\u003e\n      \u003csvg viewbox=\"0 0 420 200\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:100%;height:auto;display:block;\"\u003e\n\u003crect x=\"38\" y=\"14\" width=\"368\" height=\"152\" fill=\"#0f0f0f\"\u003e\u003c\/rect\u003e\n\u003cline x1=\"38\" x2=\"406\" y1=\"128.0\" y2=\"128.0\" stroke=\"#27272a\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003ctext x=\"34\" y=\"132.0\" text-anchor=\"end\" font-size=\"9\" fill=\"#71717a\"\u003e-12dB\u003c\/text\u003e\n\u003cline x1=\"38\" x2=\"406\" y1=\"109.0\" y2=\"109.0\" stroke=\"#27272a\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003ctext x=\"34\" y=\"113.0\" text-anchor=\"end\" font-size=\"9\" fill=\"#71717a\"\u003e-9dB\u003c\/text\u003e\n\u003cline x1=\"38\" x2=\"406\" y1=\"90.0\" y2=\"90.0\" stroke=\"#27272a\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003ctext x=\"34\" y=\"94.0\" text-anchor=\"end\" font-size=\"9\" 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stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"123.1\" x2=\"123.1\" y1=\"14\" y2=\"166\" stroke=\"#27272a\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"158.5\" x2=\"158.5\" y1=\"14\" y2=\"166\" stroke=\"#27272a\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"185.9\" x2=\"185.9\" y1=\"14\" y2=\"166\" stroke=\"#27272a\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"208.3\" x2=\"208.3\" y1=\"14\" y2=\"166\" stroke=\"#27272a\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"243.6\" x2=\"243.6\" y1=\"14\" y2=\"166\" stroke=\"#27272a\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"271.0\" x2=\"271.0\" y1=\"14\" y2=\"166\" stroke=\"#27272a\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"320.9\" x2=\"320.9\" y1=\"14\" y2=\"166\" stroke=\"#27272a\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"356.2\" x2=\"356.2\" y1=\"14\" y2=\"166\" stroke=\"#27272a\" 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  \u003cspan class=\"arc-graph-legend-item\"\u003e\u003cspan class=\"arc-graph-legend-swatch\" style=\"background:#60a5fa;\"\u003e\u003c\/span\u003e0.90 cu ft (Qtc 0.754)\u003c\/span\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"arc-enc-note\"\u003e\n    \u003cp\u003e\u003cstrong style=\"color:#ffffff !important;\"\u003eWhat the numbers mean:\u003c\/strong\u003e The ARC Series 10 D2 is one of the flattest-aligning drivers in the ARC lineup, with Qtc values from 0.652 to 0.728 across the full sealed volume range. All three volumes land near or within the Butterworth zone (0.577 to 0.707), meaning accurate, controlled bass with excellent transient response and no artificial midbass lift. The D4 runs slightly higher (0.754 to 0.844) with a bit more fullness and warmth in the low bass. The F3 in the low-to-mid 40s for D2 and upper 30s for D4 is strong performance from a 10 inch driver. Vehicle cabin gain below 80 Hz adds 6 to 12 dB in practice, extending perceived extension well below F3. \u003ca class=\"arc-enc-link\" href=\"\/pages\/sealed-box-calculator\"\u003eRun your own numbers in the Sealed Box Calculator.\u003c\/a\u003e\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #18181b !important; border: 1px solid #3f3f46 !important; border-radius: 8px; padding: 16px 20px; margin: 24px 0;\"\u003e\n  \u003cp style=\"color: #e4e4e7 !important; font-size: 15px; margin: 0; line-height: 1.6;\"\u003eReady to build? The \u003cstrong style=\"color: #ffffff !important;\"\u003eEnclosures tab above\u003c\/strong\u003e lists the Proline X sealed and ported enclosures we build specifically for 10 inch drivers, CNC-cut in Tullahoma, Tennessee.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Arc Audio","offers":[{"title":"Dual 2 Ohm","offer_id":40310238838873,"sku":"ARC10 D2","price":298.0,"currency_code":"USD","in_stock":true},{"title":"Dual 4 Ohm","offer_id":40310238871641,"sku":"ARC10 D4","price":298.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/products\/arc-audio-arc-series-10-subwoofersubwooferarc-audio-633252.jpg?v=1761969118"},{"product_id":"arc-audio-x2v2-10-subwoofer","title":"Arc Audio X2V2 10 inch Subwoofer","description":"\u003cstyle\u003e\n  .arc-wrap { max-width: 100%; font-family: inherit; color: #e4e4e7 !important; }\n  .arc-hero { background: #18181b !important; border: 1px solid #3f3f46 !important; color: #ffffff !important; padding: 36px 28px; border-radius: 12px; margin-bottom: 28px; border-bottom: 4px solid #d71920 !important; }\n  .arc-eyebrow { color: #c8ccd0 !important; font-size: 13px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; margin: 0 0 10px 0; }\n  .arc-hero h2 { color: #ffffff !important; font-size: 28px; margin: 0 0 8px 0; line-height: 1.2; }\n  .arc-hero p { color: #f4f4f5 !important; font-size: 16px; margin: 0 0 18px 0; }\n  .arc-badges { display: flex; flex-wrap: wrap; gap: 8px; }\n  .arc-badge { background: #d71920 !important; color: #ffffff !important; font-size: 13px; font-weight: 600; padding: 6px 12px; border-radius: 4px; }\n  .arc-badge-alt { background: #27272a !important; color: #ffffff !important; border: 1px solid #c8ccd0 !important; }\n  .arc-wrap h3 { color: #ffffff !important; font-size: 22px; margin: 28px 0 12px 0; border-left: 4px solid #d71920 !important; padding-left: 12px; }\n  .arc-wrap h4 { color: #f04657 !important; font-size: 17px; margin: 20px 0 8px 0; }\n  .arc-wrap p { color: #e4e4e7 !important; font-size: 16px; line-height: 1.65; margin: 0 0 14px 0; }\n  .arc-callout { background: #27272a !important; border: 1px solid #c8ccd0 !important; border-radius: 8px; padding: 18px 20px; margin: 22px 0; }\n  .arc-callout p { color: #f4f4f5 !important; margin: 0; }\n  .arc-statgrid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin: 22px 0; }\n  .arc-stat { background: #18181b !important; border: 1px solid #3f3f46 !important; border-radius: 8px; padding: 16px; text-align: center; }\n  .arc-stat .arc-statnum { color: #ffffff !important; font-size: 22px; font-weight: 700; display: block; }\n  .arc-stat .arc-statlabel { color: #c8ccd0 !important; font-size: 12px; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; display: block; margin-top: 4px; }\n  .arc-cta { background: #18181b !important; border: 1px solid #3f3f46 !important; color: #ffffff !important; padding: 28px; border-radius: 12px; margin-top: 30px; text-align: center; border-top: 4px solid #d71920 !important; }\n  .arc-cta h3 { color: #ffffff !important; border-left: none !important; padding-left: 0; margin-top: 0; }\n  .arc-cta p { color: #f4f4f5 !important; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"arc-wrap\"\u003e\n\n  \u003cdiv class=\"arc-hero\"\u003e\n    \u003cp class=\"arc-eyebrow\"\u003eArc Audio X2V2 Series Subwoofers\u003c\/p\u003e\n    \u003ch2\u003eArc Audio X2V2 10 Inch Subwoofer\u003c\/h2\u003e\n    \u003cp\u003eEfficiency, dynamics, and serious output in a 10. The X2V2 is built around the thermal headroom to use every watt you put into it, day in and day out.\u003c\/p\u003e\n    \u003cdiv class=\"arc-badges\"\u003e\n      \u003cspan class=\"arc-badge\"\u003e200W RMS\u003c\/span\u003e\n      \u003cspan class=\"arc-badge\"\u003e400W Peak\u003c\/span\u003e\n      \u003cspan class=\"arc-badge\"\u003eDual 2 or Dual 4 Ohm\u003c\/span\u003e\n      \u003cspan class=\"arc-badge arc-badge-alt\"\u003e1-Year Warranty\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003ch3\u003eBuilt to Handle Power, Not Just Rated For It\u003c\/h3\u003e\n  \u003cp\u003eThe Arc Audio X2V2 10 inch subwoofer is rated at 200 watts RMS continuous and 400 watts maximum, with a recommended amplifier power range of 5 to 400 watts. Arc Audio's approach to the power rating is worth understanding: they tested by doubling the test power level after each successful round to find actual failure points and address them, rather than rating at what a driver survives for a short burst.\u003c\/p\u003e\n  \u003cp\u003eThe result is a 10 inch driver that genuinely handles its rated wattage for extended use without voice coil degradation, which is what allows the X2V2 to deliver its sensitivity and output advantage over long listening sessions. At 85 dB and with 13.5mm of one-way linear excursion, it fills an enclosure and a cabin the way a 10 should.\u003c\/p\u003e\n\n  \u003cdiv class=\"arc-statgrid\"\u003e\n    \u003cdiv class=\"arc-stat\"\u003e\n\u003cspan class=\"arc-statnum\"\u003e200W\u003c\/span\u003e\u003cspan class=\"arc-statlabel\"\u003eRMS Power\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"arc-stat\"\u003e\n\u003cspan class=\"arc-statnum\"\u003e13.5mm\u003c\/span\u003e\u003cspan class=\"arc-statlabel\"\u003eXmax\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"arc-stat\"\u003e\n\u003cspan class=\"arc-statnum\"\u003e85 dB\u003c\/span\u003e\u003cspan class=\"arc-statlabel\"\u003eSensitivity\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"arc-stat\"\u003e\n\u003cspan class=\"arc-statnum\"\u003e5.91 in\u003c\/span\u003e\u003cspan class=\"arc-statlabel\"\u003eMounting Depth\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003ch3\u003eCooling Is the Engineering Story\u003c\/h3\u003e\n  \u003cp\u003eEvery thermal challenge this driver faces has a deliberate engineering answer. A two-inch diameter copper-coated aluminum voice coil on a Kapton former dissipates heat efficiently while keeping moving mass low, and the coil is anodized black to improve radiative heat extraction. The four-spoke stamped steel basket features eight integrated vents to exhaust hot air from the motor assembly, and those same vents prevent pressure buildup under the spider, which directly improves linearity at high excursion. A secondary vent through the center of the T-Yoke releases pressure from under the dust cap and cools the motor further.\u003c\/p\u003e\n  \u003cp\u003eThe double-stacked magnet assembly gives the X2V2 the magnetic field intensity needed for efficient motor force, which translates to dynamic output and damping without requiring a massive power supply to get there.\u003c\/p\u003e\n\n  \u003ch3\u003eConstruction Built to Last\u003c\/h3\u003e\n  \u003cp\u003eThe cone uses reinforced pulp paper with a moisture-resistant coating for reliable performance in high-humidity conditions. The large-diameter rubber surround eliminates the most common failure point in subwoofers by replacing foam, which deteriorates with age and environment, with a material that holds its compliance for the life of the driver. The high-roll Conex spider has tinsel leads woven directly into it, eliminating the bare lead designs that can cause cone slap or short circuits.\u003c\/p\u003e\n\n  \u003ch3\u003eChoose Your Voice Coil: D2 or D4\u003c\/h3\u003e\n  \u003cp\u003eAs with the rest of the X2V2 line, the 10 is available in dual 2-ohm (D2) and dual 4-ohm (D4) configurations. The D2 wires to 1 ohm or 4 ohms, the D4 wires to 2 ohms or 8 ohms. Match the coil to where your amplifier is most stable and most efficient. The T\/S parameters differ slightly between variants, so pick the voice coil first and build the enclosure and amplifier choice around it.\u003c\/p\u003e\n\n  \u003cdiv class=\"arc-callout\"\u003e\n    \u003cp\u003e\u003cstrong\u003eFitment at a glance:\u003c\/strong\u003e mounting depth 5.91 inches, cutout 8.98 inches, outside diameter 10.23 inches, displacement 0.03 cu ft. Recommended sealed volume is 0.65 to 1.0 cubic feet. Confirm your cutout, depth, and box space before ordering.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003ch3\u003eBuilt and Backed\u003c\/h3\u003e\n  \u003cp\u003eEvery Arc Audio X2V2 10 sold by Audio Intensity is brand new and carries the Arc Audio 1-year warranty through authorized dealers.\u003c\/p\u003e\n\n  \u003cdiv class=\"arc-cta\"\u003e\n    \u003ch3\u003eAuthorized Arc Audio Dealer\u003c\/h3\u003e\n    \u003cp\u003eAudio Intensity ships the Arc Audio X2V2 10 fast from Tullahoma, Tennessee, with real installer support before and after the sale. Tell us your amplifier, your vehicle, and how you listen, and we will help you get the enclosure and the gain structure right.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003cstyle\u003e\n  .arc-enc { max-width: 100%; font-family: inherit; }\n  .arc-enc h3 { color: #ffffff !important; font-size: 22px; margin: 28px 0 12px 0; border-left: 4px solid #d71920 !important; padding-left: 12px; }\n  .arc-enc p { color: #e4e4e7 !important; font-size: 16px; line-height: 1.65; margin: 0 0 14px 0; }\n  .arc-enc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 20px 0; }\n  @media (max-width: 640px) { .arc-enc-grid { grid-template-columns: 1fr; } }\n  .arc-enc-card { background: #18181b !important; border: 1px solid #3f3f46 !important; border-radius: 10px; overflow: hidden; }\n  .arc-enc-card-head { background: #d71920 !important; color: #ffffff !important; padding: 10px 16px; font-size: 12px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; }\n  .arc-enc-table { width: 100%; border-collapse: collapse; }\n  .arc-enc-table th { background: #27272a !important; color: #c8ccd0 !important; font-size: 12px; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; padding: 8px 12px; text-align: left; }\n  .arc-enc-table td { padding: 10px 12px; border-bottom: 1px solid #27272a !important; font-size: 14px; }\n  .arc-enc-table td:first-child { color: #e4e4e7 !important; font-weight: 600; }\n  .arc-enc-table td:not(:first-child) { color: #ffffff !important; text-align: center; }\n  .arc-enc-table tr:last-child td { border-bottom: none !important; }\n  .arc-enc-table .arc-optimal td { background: #1a2a1a !important; }\n  .arc-enc-table .arc-optimal td:first-child { color: #4ade80 !important; }\n  .arc-char { font-size: 11px; color: #a1a1aa !important; display: block; font-weight: 400; margin-top: 2px; }\n  .arc-graph-wrap { background: #18181b !important; border: 1px solid #3f3f46 !important; border-radius: 10px; padding: 16px; margin: 16px 0; }\n  .arc-graph-title { color: #c8ccd0 !important; font-size: 12px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; margin: 0 0 10px 0; }\n  .arc-graph-legend { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 10px; }\n  .arc-graph-legend-item { display: flex; align-items: center; gap: 6px; font-size: 12px; color: #a1a1aa !important; }\n  .arc-graph-legend-swatch { width: 24px; height: 3px; border-radius: 2px; display: inline-block; }\n  .arc-enc-note { background: #27272a !important; border: 1px solid #3f3f46 !important; border-radius: 8px; padding: 16px 18px; margin: 18px 0 0 0; }\n  .arc-enc-note p { color: #e4e4e7 !important; font-size: 14px; margin: 0; line-height: 1.6; }\n  .arc-enc-link { color: #f04657 !important; text-decoration: underline; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"arc-enc\"\u003e\n  \u003ch3\u003eSealed Enclosure Performance: Pre-Calculated Results\u003c\/h3\u003e\n  \u003cp\u003eUsing Arc Audio's published Thiele-Small parameters and their recommended sealed volumes, here are the predicted Qtc, system resonance (Fc), F3 rolloff, and frequency response for each box size. Calculated using the same formulas as the Audio Intensity Sealed Box Calculator.\u003c\/p\u003e\n  \u003cp\u003eThe X2V2 10 is a high-Qts driver, which produces a different sealed character than a low-Qts SQ driver. Elevated Qtc values mean more midbass presence and impact rather than a flat Butterworth response. The payoff is an F3 in the mid-to-upper 30 Hz range: genuine deep bass extension from a 10 inch driver in a moderate-sized box.\u003c\/p\u003e\n\n  \u003cdiv class=\"arc-enc-grid\"\u003e\n    \u003cdiv class=\"arc-enc-card\"\u003e\n      \u003cdiv class=\"arc-enc-card-head\"\u003eD2 — Dual 2 Ohm  |  Qts 0.519  |  Fs 26.24 Hz  |  Vas 47.44 L\u003c\/div\u003e\n      \u003ctable class=\"arc-enc-table\"\u003e\n        \u003ctr\u003e\n\u003cth\u003eBox Volume\u003c\/th\u003e\n\u003cth\u003eQtc\u003c\/th\u003e\n\u003cth\u003eFc\u003c\/th\u003e\n\u003cth\u003eF3\u003c\/th\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e0.65 cu ft\u003cspan class=\"arc-char\"\u003eMinimum \/ tightest\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e0.982\u003c\/td\u003e\n\u003ctd\u003e49.6 Hz\u003c\/td\u003e\n\u003ctd\u003e39.3 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr class=\"arc-optimal\"\u003e\n\u003ctd\u003e0.75 cu ft ★\u003cspan class=\"arc-char\"\u003eOptimal (Arc recommended)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e0.933\u003c\/td\u003e\n\u003ctd\u003e47.2 Hz\u003c\/td\u003e\n\u003ctd\u003e38.4 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e1.0 cu ft\u003cspan class=\"arc-char\"\u003eMaximum \/ most relaxed\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e0.849\u003c\/td\u003e\n\u003ctd\u003e42.9 Hz\u003c\/td\u003e\n\u003ctd\u003e36.9 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"arc-enc-card\"\u003e\n      \u003cdiv class=\"arc-enc-card-head\"\u003eD4 — Dual 4 Ohm  |  Qts 0.615  |  Fs 28.26 Hz  |  Vas 43.24 L\u003c\/div\u003e\n      \u003ctable class=\"arc-enc-table\"\u003e\n        \u003ctr\u003e\n\u003cth\u003eBox Volume\u003c\/th\u003e\n\u003cth\u003eQtc\u003c\/th\u003e\n\u003cth\u003eFc\u003c\/th\u003e\n\u003cth\u003eF3\u003c\/th\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e0.65 cu ft\u003cspan class=\"arc-char\"\u003eMinimum \/ tightest\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e1.126\u003c\/td\u003e\n\u003ctd\u003e51.7 Hz\u003c\/td\u003e\n\u003ctd\u003e38.8 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr class=\"arc-optimal\"\u003e\n\u003ctd\u003e0.75 cu ft ★\u003cspan class=\"arc-char\"\u003eOptimal (Arc recommended)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e1.072\u003c\/td\u003e\n\u003ctd\u003e49.2 Hz\u003c\/td\u003e\n\u003ctd\u003e37.6 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e1.0 cu ft\u003cspan class=\"arc-char\"\u003eMaximum \/ most relaxed\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e0.978\u003c\/td\u003e\n\u003ctd\u003e44.9 Hz\u003c\/td\u003e\n\u003ctd\u003e35.7 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"arc-enc-grid\"\u003e\n    \u003cdiv class=\"arc-graph-wrap\"\u003e\n      \u003cp 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361.8,50.8 363.1,50.8 364.3,50.9 365.5,50.9 366.7,50.9 368.0,50.9 369.2,51.0 370.4,51.0 371.7,51.0 372.9,51.0 374.1,51.0 375.3,51.1 376.6,51.1 377.8,51.1 379.0,51.1 380.2,51.1 381.5,51.1 382.7,51.2 383.9,51.2 385.1,51.2 386.4,51.2 387.6,51.2 388.8,51.2 390.1,51.3 391.3,51.3 392.5,51.3 393.7,51.3 395.0,51.3 396.2,51.3 397.4,51.3 398.6,51.3 399.9,51.4 401.1,51.4 402.3,51.4 403.5,51.4 404.8,51.4 406.0,51.4\" fill=\"none\" stroke=\"#60a5fa\" stroke-width=\"1.5\" stroke-linejoin=\"round\" stroke-dasharray=\"5 3\"\u003e\u003c\/polyline\u003e\n\u003c\/svg\u003e\n      \u003cdiv class=\"arc-graph-legend\"\u003e\n        \u003cspan class=\"arc-graph-legend-item\"\u003e\u003cspan class=\"arc-graph-legend-swatch\" style=\"background:#ef4444;\"\u003e\u003c\/span\u003e0.65 cu ft (Qtc 1.126)\u003c\/span\u003e\n        \u003cspan class=\"arc-graph-legend-item\"\u003e\u003cspan class=\"arc-graph-legend-swatch\" style=\"background:#4ade80;\"\u003e\u003c\/span\u003e0.75 cu ft (Qtc 1.072) ★\u003c\/span\u003e\n        \u003cspan class=\"arc-graph-legend-item\"\u003e\u003cspan class=\"arc-graph-legend-swatch\" style=\"background:#60a5fa;\"\u003e\u003c\/span\u003e1.0 cu ft (Qtc 0.978)\u003c\/span\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"arc-enc-note\"\u003e\n    \u003cp\u003e\u003cstrong style=\"color:#ffffff !important;\"\u003eWhat the numbers mean:\u003c\/strong\u003e A Qtc near 0.707 is textbook Butterworth (flattest sealed response). The X2V2 10 runs higher than that across all volumes by design. Qtc in the 0.85 to 1.0 range produces warm, full-sounding bass with a gentle midbass lift. Qtc above 1.0 adds a more pronounced midbass peak with added punch. The F3 in the 36 to 39 Hz range is excellent for a 10 inch driver in a moderate-sized box, and vehicle cabin gain below 80 Hz typically adds 6 to 12 dB in practice. \u003ca class=\"arc-enc-link\" href=\"\/pages\/sealed-box-calculator\"\u003eRun your own numbers in the Sealed Box Calculator.\u003c\/a\u003e\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #18181b !important; border: 1px solid #3f3f46 !important; border-radius: 8px; padding: 16px 20px; margin: 24px 0;\"\u003e\n  \u003cp style=\"color: #e4e4e7 !important; font-size: 15px; margin: 0; line-height: 1.6;\"\u003eReady to build? The \u003cstrong style=\"color: #ffffff !important;\"\u003eEnclosures tab above\u003c\/strong\u003e lists the Proline X sealed enclosures we build specifically for this driver, CNC-cut in Tullahoma, Tennessee to the dimensions the numbers above call for.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Arc Audio","offers":[{"title":"Dual 2 Ohm","offer_id":40310251487321,"sku":"X2V2-10_2","price":180.0,"currency_code":"USD","in_stock":true},{"title":"Dual 4 Ohm","offer_id":40310251520089,"sku":"X2V2-10_4","price":180.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/products\/arc-audio-x2v2-10-subwoofersubwooferarc-audio-568066.jpg?v=1761969119"},{"product_id":"arc-audio-x2v2-12-subwoofer","title":"Arc Audio X2V2 12\" Subwoofer","description":"\u003cstyle\u003e\n  .arc-wrap { max-width: 100%; font-family: inherit; color: #e4e4e7 !important; }\n  .arc-hero { background: #18181b !important; border: 1px solid #3f3f46 !important; color: #ffffff !important; padding: 36px 28px; border-radius: 12px; margin-bottom: 28px; border-bottom: 4px solid #d71920 !important; }\n  .arc-eyebrow { color: #c8ccd0 !important; font-size: 13px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; margin: 0 0 10px 0; }\n  .arc-hero h2 { color: #ffffff !important; font-size: 28px; margin: 0 0 8px 0; line-height: 1.2; }\n  .arc-hero p { color: #f4f4f5 !important; font-size: 16px; margin: 0 0 18px 0; }\n  .arc-badges { display: flex; flex-wrap: wrap; gap: 8px; }\n  .arc-badge { background: #d71920 !important; color: #ffffff !important; font-size: 13px; font-weight: 600; padding: 6px 12px; border-radius: 4px; }\n  .arc-badge-alt { background: #27272a !important; color: #ffffff !important; border: 1px solid #c8ccd0 !important; }\n  .arc-wrap h3 { color: #ffffff !important; font-size: 22px; margin: 28px 0 12px 0; border-left: 4px solid #d71920 !important; padding-left: 12px; }\n  .arc-wrap h4 { color: #f04657 !important; font-size: 17px; margin: 20px 0 8px 0; }\n  .arc-wrap p { color: #e4e4e7 !important; font-size: 16px; line-height: 1.65; margin: 0 0 14px 0; }\n  .arc-callout { background: #27272a !important; border: 1px solid #c8ccd0 !important; border-radius: 8px; padding: 18px 20px; margin: 22px 0; }\n  .arc-callout p { color: #f4f4f5 !important; margin: 0; }\n  .arc-statgrid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin: 22px 0; }\n  .arc-stat { background: #18181b !important; border: 1px solid #3f3f46 !important; border-radius: 8px; padding: 16px; text-align: center; }\n  .arc-stat .arc-statnum { color: #ffffff !important; font-size: 22px; font-weight: 700; display: block; }\n  .arc-stat .arc-statlabel { color: #c8ccd0 !important; font-size: 12px; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; display: block; margin-top: 4px; }\n  .arc-cta { background: #18181b !important; border: 1px solid #3f3f46 !important; color: #ffffff !important; padding: 28px; border-radius: 12px; margin-top: 30px; text-align: center; border-top: 4px solid #d71920 !important; }\n  .arc-cta h3 { color: #ffffff !important; border-left: none !important; padding-left: 0; margin-top: 0; }\n  .arc-cta p { color: #f4f4f5 !important; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"arc-wrap\"\u003e\n\n  \u003cdiv class=\"arc-hero\"\u003e\n    \u003cp class=\"arc-eyebrow\"\u003eArc Audio X2V2 Series Subwoofers\u003c\/p\u003e\n    \u003ch2\u003eArc Audio X2V2 12 Inch Subwoofer\u003c\/h2\u003e\n    \u003cp\u003eMore cone, more output, same engineering. The X2V2 12 brings the full thermal and cooling system of the X2V2 line to a 12 inch driver rated at 250 watts RMS with deep sealed extension.\u003c\/p\u003e\n    \u003cdiv class=\"arc-badges\"\u003e\n      \u003cspan class=\"arc-badge\"\u003e250W RMS\u003c\/span\u003e\n      \u003cspan class=\"arc-badge\"\u003e500W Peak\u003c\/span\u003e\n      \u003cspan class=\"arc-badge\"\u003eDual 2 or Dual 4 Ohm\u003c\/span\u003e\n      \u003cspan class=\"arc-badge arc-badge-alt\"\u003e1-Year Warranty\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003ch3\u003e250 Watts Built to Last\u003c\/h3\u003e\n  \u003cp\u003eThe Arc Audio X2V2 12 inch subwoofer handles 250 watts RMS continuous and 500 watts maximum, with a recommended amplifier range of 5 to 500 watts. The same extended power testing philosophy applies here as on the 10: Arc Audio doubled test power levels after each successful round to identify and address actual failure points, producing a 250 watt RMS rating that reflects sustained real-world thermal capacity.\u003c\/p\u003e\n  \u003cp\u003eThe 514 square centimeter cone area moves substantially more air than a 10 inch driver at the same excursion. Combined with 15mm of one-way linear Xmax and sensitivity reaching 85.95 dB on the D2, the X2V2 12 fills a cabin without asking for a high-powered amplifier to do it.\u003c\/p\u003e\n\n  \u003cdiv class=\"arc-statgrid\"\u003e\n    \u003cdiv class=\"arc-stat\"\u003e\n\u003cspan class=\"arc-statnum\"\u003e250W\u003c\/span\u003e\u003cspan class=\"arc-statlabel\"\u003eRMS Power\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"arc-stat\"\u003e\n\u003cspan class=\"arc-statnum\"\u003e15mm\u003c\/span\u003e\u003cspan class=\"arc-statlabel\"\u003eXmax\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"arc-stat\"\u003e\n\u003cspan class=\"arc-statnum\"\u003e85.95 dB\u003c\/span\u003e\u003cspan class=\"arc-statlabel\"\u003eSensitivity (D2)\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"arc-stat\"\u003e\n\u003cspan class=\"arc-statnum\"\u003e6.75 in\u003c\/span\u003e\u003cspan class=\"arc-statlabel\"\u003eMounting Depth\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003ch3\u003eThe Same Cooling System, Scaled Up\u003c\/h3\u003e\n  \u003cp\u003eEvery thermal feature from the X2V2 10 carries over to the 12. A two-inch copper-coated aluminum voice coil on a Kapton former, anodized black for radiative heat dissipation. The four-spoke stamped steel basket with eight integrated motor cooling vents and a T-Yoke center vent. Double-stacked magnets for motor efficiency. The 12 inch cone moves more air and generates more heat at the same power level, and Arc Audio engineered the platform to handle that.\u003c\/p\u003e\n\n  \u003ch3\u003eConstruction Built for Daily Use\u003c\/h3\u003e\n  \u003cp\u003eThe reinforced pulp paper cone carries a moisture-resistant coating for reliability in all conditions. The large-diameter rubber surround replaces foam, eliminating the most common long-term failure point in subwoofers. The high-roll Conex spider has tinsel leads woven directly into it, removing the bare-lead designs that cause cone slap and short circuits over time.\u003c\/p\u003e\n\n  \u003ch3\u003eChoose Your Voice Coil: D2 or D4\u003c\/h3\u003e\n  \u003cp\u003eThe dual 2-ohm (D2) wires to 1 ohm or 4 ohms, the dual 4-ohm (D4) wires to 2 ohms or 8 ohms. The T\/S parameters differ between variants, which changes the sealed box alignment and character, so select the coil based on your amplifier's preferred impedance first. The enclosure performance section below shows exactly how each variant behaves across the recommended sealed volume range.\u003c\/p\u003e\n\n  \u003cdiv class=\"arc-callout\"\u003e\n    \u003cp\u003e\u003cstrong\u003eFitment at a glance:\u003c\/strong\u003e mounting depth 6.75 inches, cutout 11.11 inches, outside diameter 12.45 inches, displacement 0.07 cu ft. Recommended sealed volume is 0.9 to 1.55 cubic feet. Confirm cutout, depth, and box space before ordering.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003ch3\u003eBuilt and Backed\u003c\/h3\u003e\n  \u003cp\u003eEvery Arc Audio X2V2 12 sold by Audio Intensity is brand new and carries the Arc Audio 1-year warranty through authorized dealers.\u003c\/p\u003e\n\n  \u003cdiv class=\"arc-cta\"\u003e\n    \u003ch3\u003eAuthorized Arc Audio Dealer\u003c\/h3\u003e\n    \u003cp\u003eAudio Intensity ships the Arc Audio X2V2 12 fast from Tullahoma, Tennessee, with real installer support before and after the sale. Tell us your amplifier and your available space and we will help you land on the right voice coil, the right enclosure, and the right gain structure.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003cstyle\u003e\n  .arc-enc { max-width: 100%; font-family: inherit; }\n  .arc-enc h3 { color: #ffffff !important; font-size: 22px; margin: 28px 0 12px 0; border-left: 4px solid #d71920 !important; padding-left: 12px; }\n  .arc-enc p { color: #e4e4e7 !important; font-size: 16px; line-height: 1.65; margin: 0 0 14px 0; }\n  .arc-enc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 20px 0; }\n  @media (max-width: 640px) { .arc-enc-grid { grid-template-columns: 1fr; } }\n  .arc-enc-card { background: #18181b !important; border: 1px solid #3f3f46 !important; border-radius: 10px; overflow: hidden; }\n  .arc-enc-card-head { background: #d71920 !important; color: #ffffff !important; padding: 10px 16px; font-size: 12px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; }\n  .arc-enc-table { width: 100%; border-collapse: collapse; }\n  .arc-enc-table th { background: #27272a !important; color: #c8ccd0 !important; font-size: 12px; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; padding: 8px 12px; text-align: left; }\n  .arc-enc-table td { padding: 10px 12px; border-bottom: 1px solid #27272a !important; font-size: 14px; }\n  .arc-enc-table td:first-child { color: #e4e4e7 !important; font-weight: 600; }\n  .arc-enc-table td:not(:first-child) { color: #ffffff !important; text-align: center; }\n  .arc-enc-table tr:last-child td { border-bottom: none !important; }\n  .arc-enc-table .arc-optimal td { background: #1a2a1a !important; }\n  .arc-enc-table .arc-optimal td:first-child { color: #4ade80 !important; }\n  .arc-char { font-size: 11px; color: #a1a1aa !important; display: block; font-weight: 400; margin-top: 2px; }\n  .arc-graph-wrap { background: #18181b !important; border: 1px solid #3f3f46 !important; border-radius: 10px; padding: 16px; margin: 16px 0; }\n  .arc-graph-title { color: #c8ccd0 !important; font-size: 12px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; margin: 0 0 10px 0; }\n  .arc-graph-legend { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 10px; }\n  .arc-graph-legend-item { display: flex; align-items: center; gap: 6px; font-size: 12px; color: #a1a1aa !important; }\n  .arc-graph-legend-swatch { width: 24px; height: 3px; border-radius: 2px; display: inline-block; }\n  .arc-enc-note { background: #27272a !important; border: 1px solid #3f3f46 !important; border-radius: 8px; padding: 16px 18px; margin: 18px 0 0 0; }\n  .arc-enc-note p { color: #e4e4e7 !important; font-size: 14px; margin: 0; line-height: 1.6; }\n  .arc-enc-link { color: #f04657 !important; text-decoration: underline; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"arc-enc\"\u003e\n  \u003ch3\u003eSealed Enclosure Performance: Pre-Calculated Results\u003c\/h3\u003e\n  \u003cp\u003eUsing Arc Audio's published Thiele-Small parameters and their recommended sealed volumes, here are the predicted Qtc, system resonance (Fc), F3 rolloff, and frequency response for each box size. Calculated using the same formulas as the Audio Intensity Sealed Box Calculator.\u003c\/p\u003e\n  \u003cp\u003eThe X2V2 12 is a high-Qts driver, producing elevated midbass presence and impact in a sealed box rather than a flat Butterworth alignment. The payoff is deep F3 extension into the upper 30 Hz range from a moderately sized enclosure, with significant additional cabin gain below 80 Hz in-vehicle.\u003c\/p\u003e\n\n  \u003cdiv class=\"arc-enc-grid\"\u003e\n    \u003cdiv class=\"arc-enc-card\"\u003e\n      \u003cdiv class=\"arc-enc-card-head\"\u003eD2 — Dual 2 Ohm  |  Qts 0.471  |  Fs 25.57 Hz  |  Vas 79.36 L\u003c\/div\u003e\n      \u003ctable class=\"arc-enc-table\"\u003e\n        \u003ctr\u003e\n\u003cth\u003eBox Volume\u003c\/th\u003e\n\u003cth\u003eQtc\u003c\/th\u003e\n\u003cth\u003eFc\u003c\/th\u003e\n\u003cth\u003eF3\u003c\/th\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e0.9 cu ft\u003cspan class=\"arc-char\"\u003eMinimum \/ tightest\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e0.955\u003c\/td\u003e\n\u003ctd\u003e51.9 Hz\u003c\/td\u003e\n\u003ctd\u003e41.7 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr class=\"arc-optimal\"\u003e\n\u003ctd\u003e1.15 cu ft ★\u003cspan class=\"arc-char\"\u003eOptimal (Arc recommended)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e0.873\u003c\/td\u003e\n\u003ctd\u003e47.4 Hz\u003c\/td\u003e\n\u003ctd\u003e40.0 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e1.55 cu ft\u003cspan class=\"arc-char\"\u003eMaximum \/ most relaxed\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e0.789\u003c\/td\u003e\n\u003ctd\u003e42.8 Hz\u003c\/td\u003e\n\u003ctd\u003e38.8 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"arc-enc-card\"\u003e\n      \u003cdiv class=\"arc-enc-card-head\"\u003eD4 — Dual 4 Ohm  |  Qts 0.543  |  Fs 25.57 Hz  |  Vas 82.65 L\u003c\/div\u003e\n      \u003ctable class=\"arc-enc-table\"\u003e\n        \u003ctr\u003e\n\u003cth\u003eBox Volume\u003c\/th\u003e\n\u003cth\u003eQtc\u003c\/th\u003e\n\u003cth\u003eFc\u003c\/th\u003e\n\u003cth\u003eF3\u003c\/th\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e0.9 cu ft\u003cspan class=\"arc-char\"\u003eMinimum \/ tightest\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e1.119\u003c\/td\u003e\n\u003ctd\u003e52.7 Hz\u003c\/td\u003e\n\u003ctd\u003e39.6 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr class=\"arc-optimal\"\u003e\n\u003ctd\u003e1.15 cu ft ★\u003cspan class=\"arc-char\"\u003eOptimal (Arc recommended)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e1.021\u003c\/td\u003e\n\u003ctd\u003e48.1 Hz\u003c\/td\u003e\n\u003ctd\u003e37.5 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e1.55 cu ft\u003cspan class=\"arc-char\"\u003eMaximum \/ most relaxed\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e0.922\u003c\/td\u003e\n\u003ctd\u003e43.4 Hz\u003c\/td\u003e\n\u003ctd\u003e35.5 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"arc-enc-grid\"\u003e\n    \u003cdiv class=\"arc-graph-wrap\"\u003e\n      \u003cp 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363.1,51.1 364.3,51.1 365.5,51.1 366.7,51.1 368.0,51.1 369.2,51.2 370.4,51.2 371.7,51.2 372.9,51.2 374.1,51.2 375.3,51.2 376.6,51.3 377.8,51.3 379.0,51.3 380.2,51.3 381.5,51.3 382.7,51.3 383.9,51.3 385.1,51.3 386.4,51.4 387.6,51.4 388.8,51.4 390.1,51.4 391.3,51.4 392.5,51.4 393.7,51.4 395.0,51.4 396.2,51.5 397.4,51.5 398.6,51.5 399.9,51.5 401.1,51.5 402.3,51.5 403.5,51.5 404.8,51.5 406.0,51.5\" fill=\"none\" stroke=\"#60a5fa\" stroke-width=\"1.5\" stroke-linejoin=\"round\" stroke-dasharray=\"5 3\"\u003e\u003c\/polyline\u003e\n\u003c\/svg\u003e\n      \u003cdiv class=\"arc-graph-legend\"\u003e\n        \u003cspan class=\"arc-graph-legend-item\"\u003e\u003cspan class=\"arc-graph-legend-swatch\" style=\"background:#ef4444;\"\u003e\u003c\/span\u003e0.9 cu ft (Qtc 1.119)\u003c\/span\u003e\n        \u003cspan class=\"arc-graph-legend-item\"\u003e\u003cspan class=\"arc-graph-legend-swatch\" style=\"background:#4ade80;\"\u003e\u003c\/span\u003e1.15 cu ft (Qtc 1.021) ★\u003c\/span\u003e\n        \u003cspan class=\"arc-graph-legend-item\"\u003e\u003cspan class=\"arc-graph-legend-swatch\" style=\"background:#60a5fa;\"\u003e\u003c\/span\u003e1.55 cu ft (Qtc 0.922)\u003c\/span\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"arc-enc-note\"\u003e\n    \u003cp\u003e\u003cstrong style=\"color:#ffffff !important;\"\u003eWhat the numbers mean:\u003c\/strong\u003e Qtc near 0.707 is textbook Butterworth (flattest sealed response). The X2V2 12 runs higher across all volumes by design, producing warm, punchy bass with a midbass lift rather than a ruler-flat response. The D2 in 1.15 cu ft lands at Qtc 0.873 (warm, full-sounding). The D4 at the same volume hits Qtc 1.021 (pronounced midbass punch). F3 in the 38 to 42 Hz range is strong for a 12 inch driver in a moderate enclosure, and vehicle cabin gain below 80 Hz adds 6 to 12 dB in practice. \u003ca class=\"arc-enc-link\" href=\"\/pages\/sealed-box-calculator\"\u003eRun your own numbers in the Sealed Box Calculator.\u003c\/a\u003e\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #18181b !important; border: 1px solid #3f3f46 !important; border-radius: 8px; padding: 16px 20px; margin: 24px 0;\"\u003e\n  \u003cp style=\"color: #e4e4e7 !important; font-size: 15px; margin: 0; line-height: 1.6;\"\u003eReady to build? The \u003cstrong style=\"color: #ffffff !important;\"\u003eEnclosures tab above\u003c\/strong\u003e lists the Proline X sealed enclosures we build specifically for this driver, CNC-cut in Tullahoma, Tennessee to the dimensions the numbers above call for.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Arc Audio","offers":[{"title":"Dual 2 Ohm","offer_id":40310406643801,"sku":"X2V2-12_2","price":208.0,"currency_code":"USD","in_stock":true},{"title":"Dual 4 Ohm","offer_id":40310406676569,"sku":"X2V2-12_4","price":208.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/products\/arc-audio-x2v2-12-subwoofersubwooferarc-audio-435522.jpg?v=1761969126"},{"product_id":"arc-audio-a12-12-subwoofer","title":"Arc Audio A12 12\" Subwoofer | Audio Intensity","description":"\u003cstyle\u003e\n  .arc-wrap { max-width: 100%; font-family: inherit; color: #e4e4e7 !important; }\n  .arc-hero { background: #18181b !important; border: 1px solid #3f3f46 !important; color: #ffffff !important; padding: 36px 28px; border-radius: 12px; margin-bottom: 28px; border-bottom: 4px solid #d71920 !important; }\n  .arc-eyebrow { color: #c8ccd0 !important; font-size: 13px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; margin: 0 0 10px 0; }\n  .arc-hero h2 { color: #ffffff !important; font-size: 28px; margin: 0 0 8px 0; line-height: 1.2; }\n  .arc-hero p { color: #f4f4f5 !important; font-size: 16px; margin: 0 0 18px 0; }\n  .arc-badges { display: flex; flex-wrap: wrap; gap: 8px; }\n  .arc-badge { background: #d71920 !important; color: #ffffff !important; font-size: 13px; font-weight: 600; padding: 6px 12px; border-radius: 4px; }\n  .arc-badge-alt { background: #27272a !important; color: #ffffff !important; border: 1px solid #c8ccd0 !important; }\n  .arc-wrap h3 { color: #ffffff !important; font-size: 22px; margin: 28px 0 12px 0; border-left: 4px solid #d71920 !important; padding-left: 12px; }\n  .arc-wrap h4 { color: #f04657 !important; font-size: 17px; margin: 20px 0 8px 0; }\n  .arc-wrap p { color: #e4e4e7 !important; font-size: 16px; line-height: 1.65; margin: 0 0 14px 0; }\n  .arc-callout { background: #27272a !important; border: 1px solid #c8ccd0 !important; border-radius: 8px; padding: 18px 20px; margin: 22px 0; }\n  .arc-callout p { color: #f4f4f5 !important; margin: 0; }\n  .arc-statgrid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin: 22px 0; }\n  .arc-stat { background: #18181b !important; border: 1px solid #3f3f46 !important; border-radius: 8px; padding: 16px; text-align: center; }\n  .arc-stat .arc-statnum { color: #ffffff !important; font-size: 22px; font-weight: 700; display: block; }\n  .arc-stat .arc-statlabel { color: #c8ccd0 !important; font-size: 12px; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; display: block; margin-top: 4px; }\n  .arc-cta { background: #18181b !important; border: 1px solid #3f3f46 !important; color: #ffffff !important; padding: 28px; border-radius: 12px; margin-top: 30px; text-align: center; border-top: 4px solid #d71920 !important; }\n  .arc-cta h3 { color: #ffffff !important; border-left: none !important; padding-left: 0; margin-top: 0; }\n  .arc-cta p { color: #f4f4f5 !important; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"arc-wrap\"\u003e\n\n  \u003cdiv class=\"arc-hero\"\u003e\n    \u003cp class=\"arc-eyebrow\"\u003eArc Audio A-Series Shallow-Mount Subwoofers\u003c\/p\u003e\n    \u003ch2\u003eArc Audio A12 12 Inch Subwoofer\u003c\/h2\u003e\n    \u003cp\u003eMaximum output from the A-Series platform. The A12 brings 300 watts RMS and 12 inch cone area to installs where a full-depth 12 cannot physically fit, built with the same premium materials that define the A-Series line.\u003c\/p\u003e\n    \u003cdiv class=\"arc-badges\"\u003e\n      \u003cspan class=\"arc-badge\"\u003e300W RMS\u003c\/span\u003e\n      \u003cspan class=\"arc-badge\"\u003e600W Peak\u003c\/span\u003e\n      \u003cspan class=\"arc-badge\"\u003e3.85 in Mounting Depth\u003c\/span\u003e\n      \u003cspan class=\"arc-badge arc-badge-alt\"\u003eDual 2 or Dual 4 Ohm\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003ch3\u003eMaximum A-Series Output\u003c\/h3\u003e\n  \u003cp\u003eThe Arc Audio A12 is the top of the A-Series lineup: 300 watts RMS, 600 watts peak, 12 inch cone area, and 3.85 inches of mounting depth. The same Totoku copper voice coil wire, spun-laced Nomex former, UV grade polyether surround, progressive Nomex-blend spider, and laser-etched bonding surfaces as the A10, scaled to a 12 inch platform and built to handle a larger enclosure and more amplifier power.\u003c\/p\u003e\n  \u003cp\u003eThe jump from a 10 inch to a 12 inch cone produces about 45 percent more cone area, which moves more air at the same excursion. The result is more bass output per watt, deeper extension for a given box size, and the ability to fill larger vehicle cabins that a 10 will leave sounding thin. When your installation allows for the 0.85 to 1.25 cubic foot gross enclosure volume the A12 needs, the extra cone area is worth having.\u003c\/p\u003e\n\n  \u003cdiv class=\"arc-statgrid\"\u003e\n    \u003cdiv class=\"arc-stat\"\u003e\n\u003cspan class=\"arc-statnum\"\u003e3.85 in\u003c\/span\u003e\u003cspan class=\"arc-statlabel\"\u003eMounting Depth\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"arc-stat\"\u003e\n\u003cspan class=\"arc-statnum\"\u003e300W\u003c\/span\u003e\u003cspan class=\"arc-statlabel\"\u003eRMS Power\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"arc-stat\"\u003e\n\u003cspan class=\"arc-statnum\"\u003e8mm\u003c\/span\u003e\u003cspan class=\"arc-statlabel\"\u003eXmax\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"arc-stat\"\u003e\n\u003cspan class=\"arc-statnum\"\u003e1.0\u003c\/span\u003e\u003cspan class=\"arc-statlabel\"\u003eCu Ft Optimum (Gross)\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003ch3\u003eA12 vs. A10: Choose by Enclosure Volume\u003c\/h3\u003e\n  \u003cp\u003eThe A10 and A12 mount at essentially the same depth (3.77 and 3.85 inches). The difference is enclosure volume: the A10 works from 0.40 to 0.90 cubic feet gross, and the A12 requires 0.85 to 1.25 cubic feet gross. If your install can accommodate the larger box, the A12 gives you more cone area, more power handling, and more bass. If space limits you to under 0.85 cubic feet, the A10 is the right call.\u003c\/p\u003e\n\n  \u003ch3\u003eA12 vs. ARC Series 12: Choose by Mounting Depth\u003c\/h3\u003e\n  \u003cp\u003eThe ARC Series 12 inch subwoofer needs 6.0 inches of mounting depth. The A12 needs 3.85 inches. If you have 6 inches of depth available, the ARC Series 12 gives you a standard-depth driver with 16mm of Xmax and a linear design optimized for accuracy. If you have 4 inches or less, the A12 delivers 12 inch shallow-mount performance where the ARC 12 simply will not fit. Both carry the same enclosure volume requirement in the recommended range.\u003c\/p\u003e\n\n  \u003ch3\u003eBuilt to the A-Series Standard\u003c\/h3\u003e\n  \u003cp\u003eThe progressive heat-pressed poly-injected pulp cone keeps moving mass low so the limited motor force of a shallow-mount design can still drive the cone responsively. The UV grade polyether surround handles the temperature cycling and UV exposure that destroy foam surrounds over time. The multi-point geometric basket and motor resonation control eliminates the losses that would otherwise color the bass response at this power level. Every gluing surface is laser-etched and primed before adhesion, and every adhesive is cured in a controlled environment to specification.\u003c\/p\u003e\n\n  \u003cdiv class=\"arc-callout\"\u003e\n    \u003cp\u003e\u003cstrong\u003eFitment at a glance:\u003c\/strong\u003e mounting depth 3.85 inches, cutout 10.91 inches, outside diameter 12.17 inches, total depth 4.32 inches. Plan 4.35 to 4.75 inches of internal enclosure height to allow rear clearance. Arc Audio publishes enclosure volumes as gross (external) dimensions: minimum 0.85, optimum 1.0, maximum 1.25 cubic feet gross. See the enclosure performance section below for calculated alignments at each volume.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003ch3\u003eBuilt and Backed\u003c\/h3\u003e\n  \u003cp\u003eDesigned and engineered in the USA. Every Arc Audio A12 sold by Audio Intensity is brand new and carries the Arc Audio 1-year warranty through authorized dealers.\u003c\/p\u003e\n\n  \u003cdiv class=\"arc-cta\"\u003e\n    \u003ch3\u003eAuthorized Arc Audio Dealer\u003c\/h3\u003e\n    \u003cp\u003eAudio Intensity ships the Arc Audio A12 fast from Tullahoma, Tennessee, with real installer support before and after the sale. Tell us your vehicle, your clearances, and your amplifier and we will help you confirm whether the A12 fits and how to build the enclosure correctly.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003cstyle\u003e\n  .arc-enc { max-width: 100%; font-family: inherit; }\n  .arc-enc h3 { color: #ffffff !important; font-size: 22px; margin: 28px 0 12px 0; border-left: 4px solid #d71920 !important; padding-left: 12px; }\n  .arc-enc p { color: #e4e4e7 !important; font-size: 16px; line-height: 1.65; margin: 0 0 14px 0; }\n  .arc-enc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 20px 0; }\n  @media (max-width: 640px) { .arc-enc-grid { grid-template-columns: 1fr; } }\n  .arc-enc-card { background: #18181b !important; border: 1px solid #3f3f46 !important; border-radius: 10px; overflow: hidden; }\n  .arc-enc-card-head { background: #d71920 !important; color: #ffffff !important; padding: 10px 16px; font-size: 12px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; }\n  .arc-enc-table { width: 100%; border-collapse: collapse; }\n  .arc-enc-table th { background: #27272a !important; color: #c8ccd0 !important; font-size: 12px; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; padding: 8px 12px; text-align: left; }\n  .arc-enc-table td { padding: 10px 12px; border-bottom: 1px solid #27272a !important; font-size: 14px; }\n  .arc-enc-table td:first-child { color: #e4e4e7 !important; font-weight: 600; }\n  .arc-enc-table td:not(:first-child) { color: #ffffff !important; text-align: center; }\n  .arc-enc-table tr:last-child td { border-bottom: none !important; }\n  .arc-enc-table .arc-optimal td { background: #1a2a1a !important; }\n  .arc-enc-table .arc-optimal td:first-child { color: #4ade80 !important; }\n  .arc-char { font-size: 11px; color: #a1a1aa !important; display: block; font-weight: 400; margin-top: 2px; }\n  .arc-graph-wrap { background: #18181b !important; border: 1px solid #3f3f46 !important; border-radius: 10px; padding: 16px; margin: 16px 0; }\n  .arc-graph-title { color: #c8ccd0 !important; font-size: 12px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; margin: 0 0 10px 0; }\n  .arc-graph-legend { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 10px; }\n  .arc-graph-legend-item { display: flex; align-items: center; gap: 6px; font-size: 12px; color: #a1a1aa !important; }\n  .arc-graph-legend-swatch { width: 24px; height: 3px; border-radius: 2px; display: inline-block; }\n  .arc-enc-note { background: #27272a !important; border: 1px solid #3f3f46 !important; border-radius: 8px; padding: 16px 18px; margin: 18px 0 0 0; }\n  .arc-enc-note p { color: #e4e4e7 !important; font-size: 14px; margin: 0; line-height: 1.6; }\n  .arc-enc-link { color: #f04657 !important; text-decoration: underline; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"arc-enc\"\u003e\n  \u003ch3\u003eSealed Enclosure Performance: Pre-Calculated Results\u003c\/h3\u003e\n  \u003cp\u003eUsing Arc Audio's published Thiele-Small parameters and their recommended sealed volumes, here are the predicted Qtc, system resonance (Fc), and F3 rolloff for each box size. Arc Audio publishes the A12 enclosure volumes as gross (external) dimensions. Net internal volume will be smaller after accounting for panel thickness and driver displacement. Calculated using the same formulas as the Audio Intensity Sealed Box Calculator.\u003c\/p\u003e\n  \u003cp\u003eThe A12 is a high-Qts shallow-mount driver with a larger than typical Vas. This produces elevated Qtc values in the recommended gross volumes, which means a pronounced midbass lift and strong output in the upper bass. The payoff is exceptional F3 extension: the D2 at the optimum 1.0 cu ft lands at F3 35.6 Hz, excellent deep bass from a driver that mounts at under 4 inches. As with the A10, the 8mm Xmax means maximum undistorted output at high excursion is more limited than a standard-depth driver; set gains accordingly.\u003c\/p\u003e\n\n  \u003cdiv class=\"arc-enc-grid\"\u003e\n    \u003cdiv class=\"arc-enc-card\"\u003e\n      \u003cdiv class=\"arc-enc-card-head\"\u003eD2 — Dual 2 Ohm  |  Qts 0.612  |  Fs 25.010 Hz  |  Vas 76.323 L\u003c\/div\u003e\n      \u003ctable class=\"arc-enc-table\"\u003e\n        \u003ctr\u003e\n\u003cth\u003eBox Volume (Gross)\u003c\/th\u003e\n\u003cth\u003eQtc\u003c\/th\u003e\n\u003cth\u003eFc\u003c\/th\u003e\n\u003cth\u003eF3\u003c\/th\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e0.85 cu ft\u003cspan class=\"arc-char\"\u003eMinimum \/ tightest\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e1.250\u003c\/td\u003e\n\u003ctd\u003e51.1 Hz\u003c\/td\u003e\n\u003ctd\u003e37.2 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr class=\"arc-optimal\"\u003e\n\u003ctd\u003e1.0 cu ft ★\u003cspan class=\"arc-char\"\u003eOptimum (Arc recommended)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e1.176\u003c\/td\u003e\n\u003ctd\u003e48.1 Hz\u003c\/td\u003e\n\u003ctd\u003e35.6 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e1.25 cu ft\u003cspan class=\"arc-char\"\u003eMaximum \/ most relaxed\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e1.087\u003c\/td\u003e\n\u003ctd\u003e44.4 Hz\u003c\/td\u003e\n\u003ctd\u003e33.8 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"arc-enc-card\"\u003e\n      \u003cdiv class=\"arc-enc-card-head\"\u003eD4 — Dual 4 Ohm  |  Qts 0.659  |  Fs 26.995 Hz  |  Vas 81.813 L\u003c\/div\u003e\n      \u003ctable class=\"arc-enc-table\"\u003e\n        \u003ctr\u003e\n\u003cth\u003eBox Volume (Gross)\u003c\/th\u003e\n\u003cth\u003eQtc\u003c\/th\u003e\n\u003cth\u003eFc\u003c\/th\u003e\n\u003cth\u003eF3\u003c\/th\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e0.85 cu ft\u003cspan class=\"arc-char\"\u003eMinimum \/ tightest\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e1.382\u003c\/td\u003e\n\u003ctd\u003e56.6 Hz\u003c\/td\u003e\n\u003ctd\u003e40.2 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr class=\"arc-optimal\"\u003e\n\u003ctd\u003e1.0 cu ft ★\u003cspan class=\"arc-char\"\u003eOptimum (Arc recommended)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e1.300\u003c\/td\u003e\n\u003ctd\u003e53.2 Hz\u003c\/td\u003e\n\u003ctd\u003e38.4 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e1.25 cu ft\u003cspan class=\"arc-char\"\u003eMaximum \/ most relaxed\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e1.199\u003c\/td\u003e\n\u003ctd\u003e49.1 Hz\u003c\/td\u003e\n\u003ctd\u003e36.2 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"arc-enc-grid\"\u003e\n    \u003cdiv 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361.8,50.0 363.1,50.1 364.3,50.1 365.5,50.2 366.7,50.2 368.0,50.2 369.2,50.3 370.4,50.3 371.7,50.3 372.9,50.4 374.1,50.4 375.3,50.4 376.6,50.5 377.8,50.5 379.0,50.5 380.2,50.5 381.5,50.6 382.7,50.6 383.9,50.6 385.1,50.7 386.4,50.7 387.6,50.7 388.8,50.7 390.1,50.8 391.3,50.8 392.5,50.8 393.7,50.8 395.0,50.9 396.2,50.9 397.4,50.9 398.6,50.9 399.9,50.9 401.1,51.0 402.3,51.0 403.5,51.0 404.8,51.0 406.0,51.0\" fill=\"none\" stroke=\"#60a5fa\" stroke-width=\"1.5\" stroke-linejoin=\"round\" stroke-dasharray=\"5 3\"\u003e\u003c\/polyline\u003e\n\u003c\/svg\u003e\n      \u003cdiv class=\"arc-graph-legend\"\u003e\n        \u003cspan class=\"arc-graph-legend-item\"\u003e\u003cspan class=\"arc-graph-legend-swatch\" style=\"background:#ef4444;\"\u003e\u003c\/span\u003e0.85 cu ft (Qtc 1.382)\u003c\/span\u003e\n        \u003cspan class=\"arc-graph-legend-item\"\u003e\u003cspan class=\"arc-graph-legend-swatch\" style=\"background:#4ade80;\"\u003e\u003c\/span\u003e1.0 cu ft (Qtc 1.300) ★\u003c\/span\u003e\n        \u003cspan class=\"arc-graph-legend-item\"\u003e\u003cspan class=\"arc-graph-legend-swatch\" style=\"background:#60a5fa;\"\u003e\u003c\/span\u003e1.25 cu ft (Qtc 1.199)\u003c\/span\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"arc-enc-note\"\u003e\n    \u003cp\u003e\u003cstrong style=\"color:#ffffff !important;\"\u003eWhat the numbers mean:\u003c\/strong\u003e The A12 runs at higher Qtc values than most standard-depth drivers, which is characteristic of shallow-mount designs with high Qts and large Vas. Qtc above 1.0 produces a pronounced midbass lift centered around the system resonance, adding impact and presence in the upper bass. The frequency response curves show a rising then falling shape rather than a flat top. The real story is the F3: the D2 at 1.0 cu ft reaches 35.6 Hz, and even at 0.85 cu ft it extends to 37 Hz, which is strong deep bass extension for a driver that mounts at 3.85 inches. Vehicle cabin gain adds another 6 to 12 dB below 80 Hz in practice. Arc publishes these as gross (external) volumes; net internal volume will be somewhat smaller. The 8mm Xmax caps maximum clean output before the driver reaches its excursion limit. \u003ca class=\"arc-enc-link\" href=\"\/pages\/sealed-box-calculator\"\u003eRun your own numbers in the Sealed Box Calculator.\u003c\/a\u003e\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #18181b !important; border: 1px solid #3f3f46 !important; border-radius: 8px; padding: 16px 20px; margin: 24px 0;\"\u003e\n  \u003cp style=\"color: #e4e4e7 !important; font-size: 15px; margin: 0; line-height: 1.6;\"\u003eReady to build? The \u003cstrong style=\"color: #ffffff !important;\"\u003eEnclosures tab above\u003c\/strong\u003e lists Proline X sealed enclosures optimized for 12 inch Arc Audio subwoofers, CNC-cut in Tullahoma, Tennessee.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Arc Audio","offers":[{"title":"Dual 2 Ohm","offer_id":40311413997657,"sku":"A12 D2","price":318.0,"currency_code":"USD","in_stock":true},{"title":"Dual 4 Ohm","offer_id":40311414030425,"sku":"A12 D4","price":318.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/products\/arc-audio-a12-12-subwoofersubwooferarc-audio-914537.jpg?v=1761969128"},{"product_id":"arc-audio-arc-series-12-subwoofer","title":"Arc Audio Arc Series 12\" Subwoofer","description":"\u003cstyle\u003e\n  .arc-wrap { max-width: 100%; font-family: inherit; color: #e4e4e7 !important; }\n  .arc-hero { background: #18181b !important; border: 1px solid #3f3f46 !important; color: #ffffff !important; padding: 36px 28px; border-radius: 12px; margin-bottom: 28px; border-bottom: 4px solid #d71920 !important; }\n  .arc-eyebrow { color: #c8ccd0 !important; font-size: 13px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; margin: 0 0 10px 0; }\n  .arc-hero h2 { color: #ffffff !important; font-size: 28px; margin: 0 0 8px 0; line-height: 1.2; }\n  .arc-hero p { color: #f4f4f5 !important; font-size: 16px; margin: 0 0 18px 0; }\n  .arc-badges { display: flex; flex-wrap: wrap; gap: 8px; }\n  .arc-badge { background: #d71920 !important; color: #ffffff !important; font-size: 13px; font-weight: 600; padding: 6px 12px; border-radius: 4px; }\n  .arc-badge-alt { background: #27272a !important; color: #ffffff !important; border: 1px solid #c8ccd0 !important; }\n  .arc-wrap h3 { color: #ffffff !important; font-size: 22px; margin: 28px 0 12px 0; border-left: 4px solid #d71920 !important; padding-left: 12px; }\n  .arc-wrap h4 { color: #f04657 !important; font-size: 17px; margin: 20px 0 8px 0; }\n  .arc-wrap p { color: #e4e4e7 !important; font-size: 16px; line-height: 1.65; margin: 0 0 14px 0; }\n  .arc-callout { background: #27272a !important; border: 1px solid #c8ccd0 !important; border-radius: 8px; padding: 18px 20px; margin: 22px 0; }\n  .arc-callout p { color: #f4f4f5 !important; margin: 0; }\n  .arc-statgrid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin: 22px 0; }\n  .arc-stat { background: #18181b !important; border: 1px solid #3f3f46 !important; border-radius: 8px; padding: 16px; text-align: center; }\n  .arc-stat .arc-statnum { color: #ffffff !important; font-size: 22px; font-weight: 700; display: block; }\n  .arc-stat .arc-statlabel { color: #c8ccd0 !important; font-size: 12px; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; display: block; margin-top: 4px; }\n  .arc-cta { background: #18181b !important; border: 1px solid #3f3f46 !important; color: #ffffff !important; padding: 28px; border-radius: 12px; margin-top: 30px; text-align: center; border-top: 4px solid #d71920 !important; }\n  .arc-cta h3 { color: #ffffff !important; border-left: none !important; padding-left: 0; margin-top: 0; }\n  .arc-cta p { color: #f4f4f5 !important; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"arc-wrap\"\u003e\n\n  \u003cdiv class=\"arc-hero\"\u003e\n    \u003cp class=\"arc-eyebrow\"\u003eArc Audio ARC Series Subwoofers\u003c\/p\u003e\n    \u003ch2\u003eArc Audio ARC Series 12 Inch Subwoofer\u003c\/h2\u003e\n    \u003cp\u003eThe top of the ARC Series lineup. 350 watts RMS, 89 dB sensitivity, 18mm Xmax, and the Arc Audio linear design philosophy applied to the format that moves the most air.\u003c\/p\u003e\n    \u003cdiv class=\"arc-badges\"\u003e\n      \u003cspan class=\"arc-badge\"\u003e350W RMS\u003c\/span\u003e\n      \u003cspan class=\"arc-badge\"\u003e700W Peak\u003c\/span\u003e\n      \u003cspan class=\"arc-badge\"\u003eDual 2 or Dual 4 Ohm\u003c\/span\u003e\n      \u003cspan class=\"arc-badge arc-badge-alt\"\u003e89 dB Sensitivity\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003ch3\u003eMaximum Output, Same Arc Audio Accuracy\u003c\/h3\u003e\n  \u003cp\u003eThe Arc Audio ARC Series 12 inch subwoofer handles 350 watts RMS and 700 watts maximum across a recommended amplifier range of 5 to 700 watts. The 72.85 square inch cone area moves substantially more air than the 10 inch, the 18mm one-way Xmax gives it real excursion capability, and the 89 dB sensitivity means a quality amplifier in the 300 to 400 watt range produces authority that fills a full-size truck or SUV cabin.\u003c\/p\u003e\n  \u003cp\u003eThe same linear design philosophy that runs through the ARC 8 and ARC 10 applies here. Consistent mechanical and electrical behavior across the full excursion range means the 12 is not just louder than the 10, it is louder with the same accuracy at all volume levels. Sealed, ported, and infinite baffle applications are all compatible with the driver's T\/S parameters.\u003c\/p\u003e\n\n  \u003cdiv class=\"arc-statgrid\"\u003e\n    \u003cdiv class=\"arc-stat\"\u003e\n\u003cspan class=\"arc-statnum\"\u003e350W\u003c\/span\u003e\u003cspan class=\"arc-statlabel\"\u003eRMS Power\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"arc-stat\"\u003e\n\u003cspan class=\"arc-statnum\"\u003e89 dB\u003c\/span\u003e\u003cspan class=\"arc-statlabel\"\u003eSensitivity\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"arc-stat\"\u003e\n\u003cspan class=\"arc-statnum\"\u003e18mm\u003c\/span\u003e\u003cspan class=\"arc-statlabel\"\u003eXmax\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"arc-stat\"\u003e\n\u003cspan class=\"arc-statnum\"\u003e1.07\u003c\/span\u003e\u003cspan class=\"arc-statlabel\"\u003eCu Ft Optimal\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003ch3\u003eBuilt to the ARC Series Standard\u003c\/h3\u003e\n  \u003cp\u003eHigh-temperature black anodized voice coil for thermal stability, one-piece molded rubber surround that will not deteriorate with time and temperature, progressive flat layered spider with integrated tinsel leads to eliminate bare-lead failures, stamped steel basket. Every component choice is the same as the rest of the ARC family, just scaled to a 12 inch platform.\u003c\/p\u003e\n  \u003cp\u003eThe rubber surround is worth calling out again at this size. A 12 inch subwoofer working hard in a sealed box generates real suspension loads. The rubber surround holds its compliance and damping characteristics through years of use in a way that foam cannot match, which means the driver's T\/S parameters stay stable and the sound stays consistent over the life of the system.\u003c\/p\u003e\n\n  \u003ch3\u003eChoose Your Voice Coil: D2 or D4\u003c\/h3\u003e\n  \u003cp\u003eThe D2 wires to 1 ohm or 4 ohms, the D4 wires to 2 ohms or 8 ohms. Both share 89 dB sensitivity and 18mm Xmax. The T\/S parameters differ slightly between variants, producing marginally different sealed box alignments, with the D2 running a bit tighter at the same volume. Pick the coil that puts your amplifier in its comfort zone. The enclosure performance section below shows the full picture for both.\u003c\/p\u003e\n\n  \u003cdiv class=\"arc-callout\"\u003e\n    \u003cp\u003e\u003cstrong\u003eFitment at a glance:\u003c\/strong\u003e mounting depth 6.0 inches, cutout 11-1\/8 inches. Recommended sealed volume is 0.90 to 1.25 cubic feet with 1.07 as the optimal. Also compatible with ported and infinite baffle designs.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003ch3\u003eWhen the 12 Is the Right Call\u003c\/h3\u003e\n  \u003cp\u003eThe ARC 12 earns its enclosure volume and amplifier budget in large vehicles where a 10 leaves bass thin, in systems where maximum output at moderate amplifier power is the goal, and anywhere 89 dB sensitivity and 18mm of Xmax can be used. For a daily driver in a compact car with limited trunk space, the ARC 10 is the smarter choice. For a crew cab truck, full-size SUV, or a build where bass authority matters most, the 12 is where the ARC Series performance tops out.\u003c\/p\u003e\n\n  \u003ch3\u003eBuilt and Backed\u003c\/h3\u003e\n  \u003cp\u003eDesigned and engineered in the USA. Every Arc Audio ARC Series 12 sold by Audio Intensity is brand new and carries the Arc Audio 1-year warranty through authorized dealers.\u003c\/p\u003e\n\n  \u003cdiv class=\"arc-cta\"\u003e\n    \u003ch3\u003eAuthorized Arc Audio Dealer\u003c\/h3\u003e\n    \u003cp\u003eAudio Intensity ships the Arc Audio ARC Series 12 fast from Tullahoma, Tennessee, with real installer support before and after the sale. Tell us your amplifier, your vehicle, and your goals and we will help you match the right enclosure and voice coil to your setup.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003cstyle\u003e\n  .arc-enc { max-width: 100%; font-family: inherit; }\n  .arc-enc h3 { color: #ffffff !important; font-size: 22px; margin: 28px 0 12px 0; border-left: 4px solid #d71920 !important; padding-left: 12px; }\n  .arc-enc p { color: #e4e4e7 !important; font-size: 16px; line-height: 1.65; margin: 0 0 14px 0; }\n  .arc-enc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 20px 0; }\n  @media (max-width: 640px) { .arc-enc-grid { grid-template-columns: 1fr; } }\n  .arc-enc-card { background: #18181b !important; border: 1px solid #3f3f46 !important; border-radius: 10px; overflow: hidden; }\n  .arc-enc-card-head { background: #d71920 !important; color: #ffffff !important; padding: 10px 16px; font-size: 12px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; }\n  .arc-enc-table { width: 100%; border-collapse: collapse; }\n  .arc-enc-table th { background: #27272a !important; color: #c8ccd0 !important; font-size: 12px; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; padding: 8px 12px; text-align: left; }\n  .arc-enc-table td { padding: 10px 12px; border-bottom: 1px solid #27272a !important; font-size: 14px; }\n  .arc-enc-table td:first-child { color: #e4e4e7 !important; font-weight: 600; }\n  .arc-enc-table td:not(:first-child) { color: #ffffff !important; text-align: center; }\n  .arc-enc-table tr:last-child td { border-bottom: none !important; }\n  .arc-enc-table .arc-optimal td { background: #1a2a1a !important; }\n  .arc-enc-table .arc-optimal td:first-child { color: #4ade80 !important; }\n  .arc-char { font-size: 11px; color: #a1a1aa !important; display: block; font-weight: 400; margin-top: 2px; }\n  .arc-graph-wrap { background: #18181b !important; border: 1px solid #3f3f46 !important; border-radius: 10px; padding: 16px; margin: 16px 0; }\n  .arc-graph-title { color: #c8ccd0 !important; font-size: 12px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; margin: 0 0 10px 0; }\n  .arc-graph-legend { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 10px; }\n  .arc-graph-legend-item { display: flex; align-items: center; gap: 6px; font-size: 12px; color: #a1a1aa !important; }\n  .arc-graph-legend-swatch { width: 24px; height: 3px; border-radius: 2px; display: inline-block; }\n  .arc-enc-note { background: #27272a !important; border: 1px solid #3f3f46 !important; border-radius: 8px; padding: 16px 18px; margin: 18px 0 0 0; }\n  .arc-enc-note p { color: #e4e4e7 !important; font-size: 14px; margin: 0; line-height: 1.6; }\n  .arc-enc-link { color: #f04657 !important; text-decoration: underline; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"arc-enc\"\u003e\n  \u003ch3\u003eSealed Enclosure Performance: Pre-Calculated Results\u003c\/h3\u003e\n  \u003cp\u003eUsing Arc Audio's published Thiele-Small parameters and their recommended sealed volumes, here are the predicted Qtc, system resonance (Fc), F3 rolloff, and frequency response for each box size. Calculated using the same formulas as the Audio Intensity Sealed Box Calculator.\u003c\/p\u003e\n  \u003cp\u003eThe ARC Series 12 runs in the slightly warm to punchy sealed zone across all three volumes. The D2 in the 1.07 cu ft optimal lands at Qtc 0.846, a full-sounding, impactful alignment with F3 below 38 Hz. The D4 runs a bit higher. Both deliver genuine deep bass extension from a moderate sealed box.\u003c\/p\u003e\n\n  \u003cdiv class=\"arc-enc-grid\"\u003e\n    \u003cdiv class=\"arc-enc-card\"\u003e\n      \u003cdiv class=\"arc-enc-card-head\"\u003eD2 — Dual 2 Ohm  |  Qts 0.455  |  Fs 23.5 Hz  |  Vas 74.43 L\u003c\/div\u003e\n      \u003ctable class=\"arc-enc-table\"\u003e\n        \u003ctr\u003e\n\u003cth\u003eBox Volume\u003c\/th\u003e\n\u003cth\u003eQtc\u003c\/th\u003e\n\u003cth\u003eFc\u003c\/th\u003e\n\u003cth\u003eF3\u003c\/th\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e0.90 cu ft\u003cspan class=\"arc-char\"\u003eMinimum \/ tightest\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e0.901\u003c\/td\u003e\n\u003ctd\u003e46.5 Hz\u003c\/td\u003e\n\u003ctd\u003e38.6 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr class=\"arc-optimal\"\u003e\n\u003ctd\u003e1.07 cu ft ★\u003cspan class=\"arc-char\"\u003eOptimal (Arc recommended)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e0.846\u003c\/td\u003e\n\u003ctd\u003e43.7 Hz\u003c\/td\u003e\n\u003ctd\u003e37.7 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e1.25 cu ft\u003cspan class=\"arc-char\"\u003eMaximum \/ most relaxed\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e0.801\u003c\/td\u003e\n\u003ctd\u003e41.4 Hz\u003c\/td\u003e\n\u003ctd\u003e37.1 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"arc-enc-card\"\u003e\n      \u003cdiv class=\"arc-enc-card-head\"\u003eD4 — Dual 4 Ohm  |  Qts 0.469  |  Fs 23.2 Hz  |  Vas 76.28 L\u003c\/div\u003e\n      \u003ctable class=\"arc-enc-table\"\u003e\n        \u003ctr\u003e\n\u003cth\u003eBox Volume\u003c\/th\u003e\n\u003cth\u003eQtc\u003c\/th\u003e\n\u003cth\u003eFc\u003c\/th\u003e\n\u003cth\u003eF3\u003c\/th\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e0.90 cu ft\u003cspan class=\"arc-char\"\u003eMinimum \/ tightest\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e0.937\u003c\/td\u003e\n\u003ctd\u003e46.4 Hz\u003c\/td\u003e\n\u003ctd\u003e37.6 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr class=\"arc-optimal\"\u003e\n\u003ctd\u003e1.07 cu ft ★\u003cspan class=\"arc-char\"\u003eOptimal (Arc recommended)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e0.880\u003c\/td\u003e\n\u003ctd\u003e43.5 Hz\u003c\/td\u003e\n\u003ctd\u003e36.6 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e1.25 cu ft\u003cspan class=\"arc-char\"\u003eMaximum \/ most relaxed\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e0.833\u003c\/td\u003e\n\u003ctd\u003e41.2 Hz\u003c\/td\u003e\n\u003ctd\u003e35.9 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"arc-enc-grid\"\u003e\n    \u003cdiv class=\"arc-graph-wrap\"\u003e\n      \u003cp 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251.4,49.8 252.7,49.8 253.9,49.9 255.1,49.9 256.3,49.9 257.6,49.9 258.8,49.9 260.0,49.9 261.3,50.0 262.5,50.0 263.7,50.0 264.9,50.0 266.2,50.0 267.4,50.1 268.6,50.1 269.8,50.1 271.1,50.1 272.3,50.1 273.5,50.2 274.7,50.2 276.0,50.2 277.2,50.2 278.4,50.3 279.7,50.3 280.9,50.3 282.1,50.3 283.3,50.3 284.6,50.4 285.8,50.4 287.0,50.4 288.2,50.4 289.5,50.5 290.7,50.5 291.9,50.5 293.1,50.5 294.4,50.5 295.6,50.6 296.8,50.6 298.1,50.6 299.3,50.6 300.5,50.7 301.7,50.7 303.0,50.7 304.2,50.7 305.4,50.7 306.6,50.8 307.9,50.8 309.1,50.8 310.3,50.8 311.5,50.8 312.8,50.9 314.0,50.9 315.2,50.9 316.5,50.9 317.7,50.9 318.9,50.9 320.1,51.0 321.4,51.0 322.6,51.0 323.8,51.0 325.0,51.0 326.3,51.1 327.5,51.1 328.7,51.1 329.9,51.1 331.2,51.1 332.4,51.1 333.6,51.1 334.9,51.2 336.1,51.2 337.3,51.2 338.5,51.2 339.8,51.2 341.0,51.2 342.2,51.2 343.4,51.3 344.7,51.3 345.9,51.3 347.1,51.3 348.3,51.3 349.6,51.3 350.8,51.3 352.0,51.4 353.3,51.4 354.5,51.4 355.7,51.4 356.9,51.4 358.2,51.4 359.4,51.4 360.6,51.4 361.8,51.4 363.1,51.5 364.3,51.5 365.5,51.5 366.7,51.5 368.0,51.5 369.2,51.5 370.4,51.5 371.7,51.5 372.9,51.5 374.1,51.5 375.3,51.5 376.6,51.6 377.8,51.6 379.0,51.6 380.2,51.6 381.5,51.6 382.7,51.6 383.9,51.6 385.1,51.6 386.4,51.6 387.6,51.6 388.8,51.6 390.1,51.6 391.3,51.6 392.5,51.7 393.7,51.7 395.0,51.7 396.2,51.7 397.4,51.7 398.6,51.7 399.9,51.7 401.1,51.7 402.3,51.7 403.5,51.7 404.8,51.7 406.0,51.7\" fill=\"none\" stroke=\"#60a5fa\" stroke-width=\"1.5\" stroke-linejoin=\"round\" stroke-dasharray=\"5 3\"\u003e\u003c\/polyline\u003e\n\u003c\/svg\u003e\n      \u003cdiv class=\"arc-graph-legend\"\u003e\n        \u003cspan class=\"arc-graph-legend-item\"\u003e\u003cspan class=\"arc-graph-legend-swatch\" style=\"background:#ef4444;\"\u003e\u003c\/span\u003e0.90 cu ft (Qtc 0.937)\u003c\/span\u003e\n        \u003cspan class=\"arc-graph-legend-item\"\u003e\u003cspan class=\"arc-graph-legend-swatch\" style=\"background:#4ade80;\"\u003e\u003c\/span\u003e1.07 cu ft (Qtc 0.880) ★\u003c\/span\u003e\n        \u003cspan class=\"arc-graph-legend-item\"\u003e\u003cspan class=\"arc-graph-legend-swatch\" style=\"background:#60a5fa;\"\u003e\u003c\/span\u003e1.25 cu ft (Qtc 0.833)\u003c\/span\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"arc-enc-note\"\u003e\n    \u003cp\u003e\u003cstrong style=\"color:#ffffff !important;\"\u003eWhat the numbers mean:\u003c\/strong\u003e Qtc near 0.707 is textbook Butterworth (flattest sealed response). The ARC Series 12 runs from 0.80 to 0.94 across the recommended volume range, landing in the slightly warm to impactful zone. That means a gentle midbass lift that adds fullness and presence without becoming boomy, combined with F3 in the 36 to 39 Hz range, genuine deep bass extension from a sealed 12. Vehicle cabin gain below 80 Hz adds another 6 to 12 dB in practice, extending perceived bass well below F3. The D2 at any volume runs slightly lower Qtc than the D4, producing a marginally tighter character at the same box size. \u003ca class=\"arc-enc-link\" href=\"\/pages\/sealed-box-calculator\"\u003eRun your own numbers in the Sealed Box Calculator.\u003c\/a\u003e\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #18181b !important; border: 1px solid #3f3f46 !important; border-radius: 8px; padding: 16px 20px; margin: 24px 0;\"\u003e\n  \u003cp style=\"color: #e4e4e7 !important; font-size: 15px; margin: 0; line-height: 1.6;\"\u003eReady to build? The \u003cstrong style=\"color: #ffffff !important;\"\u003eEnclosures tab above\u003c\/strong\u003e lists the Proline X sealed and ported enclosures we build specifically for 12 inch drivers, CNC-cut in Tullahoma, Tennessee.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Arc Audio","offers":[{"title":"Dual 2 Ohm","offer_id":40311419502681,"sku":"ARC12 D2","price":338.0,"currency_code":"USD","in_stock":true},{"title":"Dual 4 Ohm","offer_id":40311419535449,"sku":"ARC12 D4","price":338.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/products\/arc-audio-arc-series-12-subwoofer-singlesubwooferarc-audio-953385.jpg?v=1761969129"},{"product_id":"arc-audio-arc-series-8-subwoofer","title":"Arc Audio Arc Series 8 inch Subwoofer","description":"\u003cstyle\u003e\n  .arc-wrap { max-width: 100%; font-family: inherit; color: #e4e4e7 !important; }\n  .arc-hero { background: #18181b !important; border: 1px solid #3f3f46 !important; color: #ffffff !important; padding: 36px 28px; border-radius: 12px; margin-bottom: 28px; border-bottom: 4px solid #d71920 !important; }\n  .arc-eyebrow { color: #c8ccd0 !important; font-size: 13px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; margin: 0 0 10px 0; }\n  .arc-hero h2 { color: #ffffff !important; font-size: 28px; margin: 0 0 8px 0; line-height: 1.2; }\n  .arc-hero p { color: #f4f4f5 !important; font-size: 16px; margin: 0 0 18px 0; }\n  .arc-badges { display: flex; flex-wrap: wrap; gap: 8px; }\n  .arc-badge { background: #d71920 !important; color: #ffffff !important; font-size: 13px; font-weight: 600; padding: 6px 12px; border-radius: 4px; }\n  .arc-badge-alt { background: #27272a !important; color: #ffffff !important; border: 1px solid #c8ccd0 !important; }\n  .arc-wrap h3 { color: #ffffff !important; font-size: 22px; margin: 28px 0 12px 0; border-left: 4px solid #d71920 !important; padding-left: 12px; }\n  .arc-wrap h4 { color: #f04657 !important; font-size: 17px; margin: 20px 0 8px 0; }\n  .arc-wrap p { color: #e4e4e7 !important; font-size: 16px; line-height: 1.65; margin: 0 0 14px 0; }\n  .arc-callout { background: #27272a !important; border: 1px solid #c8ccd0 !important; border-radius: 8px; padding: 18px 20px; margin: 22px 0; }\n  .arc-callout p { color: #f4f4f5 !important; margin: 0; }\n  .arc-statgrid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin: 22px 0; }\n  .arc-stat { background: #18181b !important; border: 1px solid #3f3f46 !important; border-radius: 8px; padding: 16px; text-align: center; }\n  .arc-stat .arc-statnum { color: #ffffff !important; font-size: 22px; font-weight: 700; display: block; }\n  .arc-stat .arc-statlabel { color: #c8ccd0 !important; font-size: 12px; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; display: block; margin-top: 4px; }\n  .arc-cta { background: #18181b !important; border: 1px solid #3f3f46 !important; color: #ffffff !important; padding: 28px; border-radius: 12px; margin-top: 30px; text-align: center; border-top: 4px solid #d71920 !important; }\n  .arc-cta h3 { color: #ffffff !important; border-left: none !important; padding-left: 0; margin-top: 0; }\n  .arc-cta p { color: #f4f4f5 !important; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"arc-wrap\"\u003e\n\n  \u003cdiv class=\"arc-hero\"\u003e\n    \u003cp class=\"arc-eyebrow\"\u003eArc Audio ARC Series Subwoofers\u003c\/p\u003e\n    \u003ch2\u003eArc Audio ARC Series 8 Inch Subwoofer\u003c\/h2\u003e\n    \u003cp\u003eA compact 8 engineered for the balance of sound quality and real output, designed to perform in small sealed enclosures where space is tight and bass still has to be right.\u003c\/p\u003e\n    \u003cdiv class=\"arc-badges\"\u003e\n      \u003cspan class=\"arc-badge\"\u003e150W RMS\u003c\/span\u003e\n      \u003cspan class=\"arc-badge\"\u003eDual 2 or Dual 4 Ohm\u003c\/span\u003e\n      \u003cspan class=\"arc-badge\"\u003e0.35 to 0.55 cu ft Sealed\u003c\/span\u003e\n      \u003cspan class=\"arc-badge arc-badge-alt\"\u003eUSA Engineered\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003ch3\u003eBalanced Performance in a Small Footprint\u003c\/h3\u003e\n  \u003cp\u003eThe Arc Audio ARC Series 8 inch subwoofer is built around an optimized balance of sound quality and output, the philosophy that has defined Arc Audio since 1995. It handles 150 watts RMS continuous and 300 watts maximum, with a recommended amplifier range of 5 to 300 watts, so it rewards clean power without demanding a huge amplifier.\u003c\/p\u003e\n  \u003cp\u003eThe standout trait is how little enclosure it needs. The recommended sealed volume is just 0.35 to 0.55 cubic feet, with 0.45 cubic feet as the optimal target. That is a genuinely small box for an 8, which is exactly why this driver fits compact cars, under-seat builds, and behind-seat truck enclosures where a larger sub simply will not go.\u003c\/p\u003e\n\n  \u003cdiv class=\"arc-statgrid\"\u003e\n    \u003cdiv class=\"arc-stat\"\u003e\n\u003cspan class=\"arc-statnum\"\u003e150W\u003c\/span\u003e\u003cspan class=\"arc-statlabel\"\u003eRMS Power\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"arc-stat\"\u003e\n\u003cspan class=\"arc-statnum\"\u003e15mm\u003c\/span\u003e\u003cspan class=\"arc-statlabel\"\u003eXmax\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"arc-stat\"\u003e\n\u003cspan class=\"arc-statnum\"\u003e0.45\u003c\/span\u003e\u003cspan class=\"arc-statlabel\"\u003eCu Ft Optimal\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"arc-stat\"\u003e\n\u003cspan class=\"arc-statnum\"\u003e4.75 in\u003c\/span\u003e\u003cspan class=\"arc-statlabel\"\u003eMounting Depth\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003ch3\u003eReal Excursion for an 8\u003c\/h3\u003e\n  \u003cp\u003eA 15mm one-way linear Xmax is a healthy number for an 8 inch driver, and it is the reason this sub can move meaningful air from a small box. Combined with a 35.80 square inch cone area and a low resonant frequency, the ARC 8 produces low-end weight that belies its compact enclosure requirement. It is at home in sealed, ported, and infinite baffle applications, giving you flexibility in how you design the system.\u003c\/p\u003e\n\n  \u003ch3\u003eChoose Your Voice Coil: D2 or D4\u003c\/h3\u003e\n  \u003cp\u003eThe ARC Series 8 is available in two voice coil configurations so you can match it to your amplifier. The dual 2-ohm (D2) wires to a 1-ohm or 4-ohm load, ideal for 1-ohm stable monoblocks. The dual 4-ohm (D4) wires to a 2-ohm or 8-ohm load, a better fit for amplifiers that are happiest at 2 ohms or for multi-sub systems. Select the configuration that lands your amplifier in its comfort zone.\u003c\/p\u003e\n\n  \u003ch3\u003eMatch It to the Right Enclosure\u003c\/h3\u003e\n  \u003cp\u003eThis driver was engineered for a specific, small volume, and honoring that is what makes it perform. Our Proline X P8-S is a single-8 sealed enclosure CNC-cut in Tullahoma, Tennessee and sized for drivers exactly like this one. Building your own? Target 0.45 cubic feet net for the best balance of extension and control, and stay within the 0.35 to 0.55 range. Going larger does not add usable bass, it loosens it.\u003c\/p\u003e\n\n  \u003cdiv class=\"arc-callout\"\u003e\n    \u003cp\u003e\u003cstrong\u003eFitment at a glance:\u003c\/strong\u003e mounting depth is 4.75 inches with a 7-1\/8 inch cutout and an 8-5\/16 inch outside diameter. The shallow mounting depth opens up under-seat and behind-seat locations that deeper drivers cannot use. Confirm your cutout and depth before building.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003ch3\u003eBuilt and Backed\u003c\/h3\u003e\n  \u003cp\u003eDesigned and engineered in the USA by one of the country's leading subwoofer acoustical engineers. Every Arc Audio ARC Series 8 sold by Audio Intensity is brand new and carries the Arc Audio 1-year warranty through authorized dealers.\u003c\/p\u003e\n\n  \u003cdiv class=\"arc-cta\"\u003e\n    \u003ch3\u003eAuthorized Arc Audio Dealer\u003c\/h3\u003e\n    \u003cp\u003eAudio Intensity ships the Arc Audio ARC Series 8 fast from Tullahoma, Tennessee, with real installer support before and after the sale. Tell us your amplifier and your space, and we will help you pick the right voice coil and the right enclosure to get the most from it.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003cstyle\u003e\n  .arc-enc { max-width: 100%; font-family: inherit; }\n  .arc-enc h3 { color: #ffffff !important; font-size: 22px; margin: 28px 0 12px 0; border-left: 4px solid #d71920 !important; padding-left: 12px; }\n  .arc-enc p { color: #e4e4e7 !important; font-size: 16px; line-height: 1.65; margin: 0 0 14px 0; }\n  .arc-enc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 20px 0; }\n  @media (max-width: 640px) { .arc-enc-grid { grid-template-columns: 1fr; } }\n  .arc-enc-card { background: #18181b !important; border: 1px solid #3f3f46 !important; border-radius: 10px; overflow: hidden; }\n  .arc-enc-card-head { background: #d71920 !important; color: #ffffff !important; padding: 10px 16px; font-size: 12px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; }\n  .arc-enc-table { width: 100%; border-collapse: collapse; }\n  .arc-enc-table th { background: #27272a !important; color: #c8ccd0 !important; font-size: 12px; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; padding: 8px 12px; text-align: left; }\n  .arc-enc-table td { padding: 10px 12px; border-bottom: 1px solid #27272a !important; font-size: 14px; }\n  .arc-enc-table td:first-child { color: #e4e4e7 !important; font-weight: 600; }\n  .arc-enc-table td:not(:first-child) { color: #ffffff !important; text-align: center; }\n  .arc-enc-table tr:last-child td { border-bottom: none !important; }\n  .arc-enc-table .arc-optimal td { background: #1a2a1a !important; }\n  .arc-enc-table .arc-optimal td:first-child { color: #4ade80 !important; }\n  .arc-char { font-size: 11px; color: #a1a1aa !important; display: block; font-weight: 400; margin-top: 2px; }\n  .arc-graph-wrap { background: #18181b !important; border: 1px solid #3f3f46 !important; border-radius: 10px; padding: 16px; margin: 16px 0; }\n  .arc-graph-title { color: #c8ccd0 !important; font-size: 12px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; margin: 0 0 10px 0; }\n  .arc-graph-legend { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 10px; }\n  .arc-graph-legend-item { display: flex; align-items: center; gap: 6px; font-size: 12px; color: #a1a1aa !important; }\n  .arc-graph-legend-swatch { width: 24px; height: 3px; border-radius: 2px; display: inline-block; }\n  .arc-enc-note { background: #27272a !important; border: 1px solid #3f3f46 !important; border-radius: 8px; padding: 16px 18px; margin: 18px 0 0 0; }\n  .arc-enc-note p { color: #e4e4e7 !important; font-size: 14px; margin: 0; line-height: 1.6; }\n  .arc-enc-link { color: #f04657 !important; text-decoration: underline; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"arc-enc\"\u003e\n\n  \u003ch3\u003eSealed Enclosure Performance: Pre-Calculated Results\u003c\/h3\u003e\n  \u003cp\u003eUsing Arc Audio's published Thiele-Small parameters and their recommended sealed volumes, here are the predicted Qtc, system resonance (Fc), F3 rolloff, and frequency response curves for each box size. Calculated using the same formulas as the Audio Intensity Sealed Box Calculator.\u003c\/p\u003e\n\n  \u003cdiv class=\"arc-enc-grid\"\u003e\n    \u003cdiv class=\"arc-enc-card\"\u003e\n      \u003cdiv class=\"arc-enc-card-head\"\u003eD2 — Dual 2 Ohm  |  Qts 0.289  |  Fs 24.7 Hz  |  Vas 48.14 L\u003c\/div\u003e\n      \u003ctable class=\"arc-enc-table\"\u003e\n        \u003ctr\u003e\n\u003cth\u003eBox Volume\u003c\/th\u003e\n\u003cth\u003eQtc\u003c\/th\u003e\n\u003cth\u003eFc\u003c\/th\u003e\n\u003cth\u003eF3\u003c\/th\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e0.35 cu ft\u003cspan class=\"arc-char\"\u003eMinimum \/ tightest\u003c\/span\u003e\n\u003c\/td\u003e\n          \u003ctd\u003e0.699\u003c\/td\u003e\n\u003ctd\u003e59.8 Hz\u003c\/td\u003e\n\u003ctd\u003e60.4 Hz\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr class=\"arc-optimal\"\u003e\n          \u003ctd\u003e0.45 cu ft ★\u003cspan class=\"arc-char\"\u003eOptimal (Arc recommended)\u003c\/span\u003e\n\u003c\/td\u003e\n          \u003ctd\u003e0.632\u003c\/td\u003e\n\u003ctd\u003e54.0 Hz\u003c\/td\u003e\n\u003ctd\u003e61.2 Hz\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e0.55 cu ft\u003cspan class=\"arc-char\"\u003eMaximum \/ most relaxed\u003c\/span\u003e\n\u003c\/td\u003e\n          \u003ctd\u003e0.585\u003c\/td\u003e\n\u003ctd\u003e50.0 Hz\u003c\/td\u003e\n\u003ctd\u003e62.5 Hz\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"arc-enc-card\"\u003e\n      \u003cdiv class=\"arc-enc-card-head\"\u003eD4 — Dual 4 Ohm  |  Qts 0.332  |  Fs 22.7 Hz  |  Vas 43.89 L\u003c\/div\u003e\n      \u003ctable class=\"arc-enc-table\"\u003e\n        \u003ctr\u003e\n\u003cth\u003eBox Volume\u003c\/th\u003e\n\u003cth\u003eQtc\u003c\/th\u003e\n\u003cth\u003eFc\u003c\/th\u003e\n\u003cth\u003eF3\u003c\/th\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e0.35 cu ft\u003cspan class=\"arc-char\"\u003eMinimum \/ tightest\u003c\/span\u003e\n\u003c\/td\u003e\n          \u003ctd\u003e0.774\u003c\/td\u003e\n\u003ctd\u003e52.9 Hz\u003c\/td\u003e\n\u003ctd\u003e48.7 Hz\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr class=\"arc-optimal\"\u003e\n          \u003ctd\u003e0.45 cu ft ★\u003cspan class=\"arc-char\"\u003eOptimal (Arc recommended)\u003c\/span\u003e\n\u003c\/td\u003e\n          \u003ctd\u003e0.700\u003c\/td\u003e\n\u003ctd\u003e47.9 Hz\u003c\/td\u003e\n\u003ctd\u003e48.4 Hz\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e0.55 cu ft\u003cspan class=\"arc-char\"\u003eMaximum \/ most relaxed\u003c\/span\u003e\n\u003c\/td\u003e\n          \u003ctd\u003e0.649\u003c\/td\u003e\n\u003ctd\u003e44.4 Hz\u003c\/td\u003e\n\u003ctd\u003e48.7 Hz\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- GRAPHS --\u003e\n  \u003cdiv class=\"arc-enc-grid\"\u003e\n\n    \u003c!-- D2 graph --\u003e\n    \u003cdiv class=\"arc-graph-wrap\"\u003e\n      \u003cp class=\"arc-graph-title\"\u003eD2 Frequency Response — Sealed\u003c\/p\u003e\n      \u003csvg id=\"arc8-d2-graph\" viewbox=\"0 0 420 200\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:100%;height:auto;display:block;\"\u003e\u003c\/svg\u003e\n      \u003cdiv class=\"arc-graph-legend\"\u003e\n        \u003cspan class=\"arc-graph-legend-item\"\u003e\u003cspan class=\"arc-graph-legend-swatch\" style=\"background:#ef4444;\"\u003e\u003c\/span\u003e0.35 cu ft (Qtc 0.699)\u003c\/span\u003e\n        \u003cspan class=\"arc-graph-legend-item\"\u003e\u003cspan class=\"arc-graph-legend-swatch\" style=\"background:#4ade80;\"\u003e\u003c\/span\u003e0.45 cu ft (Qtc 0.632) ★\u003c\/span\u003e\n        \u003cspan class=\"arc-graph-legend-item\"\u003e\u003cspan class=\"arc-graph-legend-swatch\" style=\"background:#60a5fa;\"\u003e\u003c\/span\u003e0.55 cu ft (Qtc 0.585)\u003c\/span\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003c!-- D4 graph --\u003e\n    \u003cdiv class=\"arc-graph-wrap\"\u003e\n      \u003cp class=\"arc-graph-title\"\u003eD4 Frequency Response — Sealed\u003c\/p\u003e\n      \u003csvg id=\"arc8-d4-graph\" viewbox=\"0 0 420 200\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:100%;height:auto;display:block;\"\u003e\u003c\/svg\u003e\n      \u003cdiv class=\"arc-graph-legend\"\u003e\n        \u003cspan class=\"arc-graph-legend-item\"\u003e\u003cspan class=\"arc-graph-legend-swatch\" style=\"background:#ef4444;\"\u003e\u003c\/span\u003e0.35 cu ft (Qtc 0.774)\u003c\/span\u003e\n        \u003cspan class=\"arc-graph-legend-item\"\u003e\u003cspan class=\"arc-graph-legend-swatch\" style=\"background:#4ade80;\"\u003e\u003c\/span\u003e0.45 cu ft (Qtc 0.700) ★\u003c\/span\u003e\n        \u003cspan class=\"arc-graph-legend-item\"\u003e\u003cspan class=\"arc-graph-legend-swatch\" style=\"background:#60a5fa;\"\u003e\u003c\/span\u003e0.55 cu ft (Qtc 0.649)\u003c\/span\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"arc-enc-note\"\u003e\n    \u003cp\u003e\u003cstrong style=\"color:#ffffff !important;\"\u003eWhat the numbers mean:\u003c\/strong\u003e Qtc near 0.707 is textbook Butterworth, the flattest possible sealed response. The 0.58–0.71 range is the near-Butterworth zone: tight, accurate, excellent transient response with no artificial warmth. The D2 at 0.45 cu ft lands at Qtc 0.632 (near-Butterworth, controlled). The D4 at 0.45 cu ft hits Qtc 0.700, essentially textbook Butterworth. Both are strong alignments. F3 is the half-power point, but vehicle cabin gain typically adds 6–12 dB below 80 Hz, so real in-car extension will be meaningfully deeper than F3 alone suggests. \u003ca class=\"arc-enc-link\" href=\"\/pages\/sealed-box-calculator\"\u003eRun your own numbers in the Sealed Box Calculator.\u003c\/a\u003e\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003cscript\u003e\n(function() {\n  \/\/ Sealed transfer function: H^2(f) = x^4 \/ (x^4 + x^2*(1\/Qtc^2 - 2) + 1), x = f\/fc\n  function H2(x, Qtc) {\n    var d = x*x*x*x + x*x*(1\/(Qtc*Qtc) - 2) + 1;\n    return (x*x*x*x) \/ d;\n  }\n  function dB(x, Qtc) {\n    var h2 = H2(x, Qtc);\n    return h2 \u003e 0 ? 10 * Math.log10(h2) : -40;\n  }\n\n  var W = 420, H = 200;\n  var PAD = { top: 12, right: 12, bottom: 32, left: 36 };\n  var plotW = W - PAD.left - PAD.right;\n  var plotH = H - PAD.top - PAD.bottom;\n\n  var fMin = 15, fMax = 300;\n  var dbMin = -18, dbMax = 6;\n\n  function fToX(f) {\n    return PAD.left + (Math.log10(f) - Math.log10(fMin)) \/ (Math.log10(fMax) - Math.log10(fMin)) * plotW;\n  }\n  function dbToY(db) {\n    return PAD.top + (1 - (db - dbMin) \/ (dbMax - dbMin)) * plotH;\n  }\n\n  function drawGraph(svgId, curves) {\n    var svg = document.getElementById(svgId);\n    if (!svg) return;\n    var ns = 'http:\/\/www.w3.org\/2000\/svg';\n\n    \/\/ Background\n    var bg = document.createElementNS(ns, 'rect');\n    bg.setAttribute('x', PAD.left); bg.setAttribute('y', PAD.top);\n    bg.setAttribute('width', plotW); bg.setAttribute('height', plotH);\n    bg.setAttribute('fill', '#0f0f0f');\n    svg.appendChild(bg);\n\n    \/\/ Grid lines and labels\n    var dbGrids = [-12, -9, -6, -3, 0, 3];\n    dbGrids.forEach(function(db) {\n      var y = dbToY(db);\n      var line = document.createElementNS(ns, 'line');\n      line.setAttribute('x1', PAD.left); line.setAttribute('x2', PAD.left + plotW);\n      line.setAttribute('y1', y); line.setAttribute('y2', y);\n      line.setAttribute('stroke', db === 0 ? '#52525b' : '#27272a');\n      line.setAttribute('stroke-width', db === 0 ? '1.5' : '1');\n      svg.appendChild(line);\n      var lbl = document.createElementNS(ns, 'text');\n      lbl.setAttribute('x', PAD.left - 4); lbl.setAttribute('y', y + 4);\n      lbl.setAttribute('text-anchor', 'end');\n      lbl.setAttribute('font-size', '9');\n      lbl.setAttribute('fill', '#71717a');\n      lbl.textContent = db + 'dB';\n      svg.appendChild(lbl);\n    });\n\n    \/\/ -3dB reference line (dashed)\n    var ref3 = document.createElementNS(ns, 'line');\n    var y3 = dbToY(-3);\n    ref3.setAttribute('x1', PAD.left); ref3.setAttribute('x2', PAD.left + plotW);\n    ref3.setAttribute('y1', y3); ref3.setAttribute('y2', y3);\n    ref3.setAttribute('stroke', '#d71920'); ref3.setAttribute('stroke-width', '1');\n    ref3.setAttribute('stroke-dasharray', '4 3'); ref3.setAttribute('opacity', '0.5');\n    svg.appendChild(ref3);\n\n    \/\/ Freq grid lines\n    var fGrids = [20, 30, 40, 50, 60, 80, 100, 150, 200, 300];\n    var fLabels = [20, 30, 50, 100, 200];\n    fGrids.forEach(function(f) {\n      var x = fToX(f);\n      var gl = document.createElementNS(ns, 'line');\n      gl.setAttribute('x1', x); gl.setAttribute('x2', x);\n      gl.setAttribute('y1', PAD.top); gl.setAttribute('y2', PAD.top + plotH);\n      gl.setAttribute('stroke', '#27272a'); gl.setAttribute('stroke-width', '1');\n      svg.appendChild(gl);\n    });\n    fLabels.forEach(function(f) {\n      var x = fToX(f);\n      var lbl = document.createElementNS(ns, 'text');\n      lbl.setAttribute('x', x); lbl.setAttribute('y', PAD.top + plotH + 14);\n      lbl.setAttribute('text-anchor', 'middle');\n      lbl.setAttribute('font-size', '9'); lbl.setAttribute('fill', '#71717a');\n      lbl.textContent = f + 'Hz';\n      svg.appendChild(lbl);\n    });\n\n    \/\/ Plot border\n    var border = document.createElementNS(ns, 'rect');\n    border.setAttribute('x', PAD.left); border.setAttribute('y', PAD.top);\n    border.setAttribute('width', plotW); border.setAttribute('height', plotH);\n    border.setAttribute('fill', 'none');\n    border.setAttribute('stroke', '#3f3f46'); border.setAttribute('stroke-width', '1');\n    svg.appendChild(border);\n\n    \/\/ Curves\n    curves.forEach(function(curve) {\n      var pts = [];\n      var steps = 300;\n      for (var i = 0; i \u003c= steps; i++) {\n        var f = fMin * Math.pow(fMax \/ fMin, i \/ steps);\n        var x = f \/ curve.fc;\n        var db = dB(x, curve.Qtc);\n        if (db \u003c dbMin) db = dbMin;\n        if (db \u003e dbMax) db = dbMax;\n        pts.push(fToX(f).toFixed(1) + ',' + dbToY(db).toFixed(1));\n      }\n      var path = document.createElementNS(ns, 'polyline');\n      path.setAttribute('points', pts.join(' '));\n      path.setAttribute('fill', 'none');\n      path.setAttribute('stroke', curve.color);\n      path.setAttribute('stroke-width', curve.width || '1.8');\n      path.setAttribute('stroke-linejoin', 'round');\n      if (curve.dash) path.setAttribute('stroke-dasharray', curve.dash);\n      svg.appendChild(path);\n    });\n  }\n\n  drawGraph('arc8-d2-graph', [\n    { Qtc: 0.699, fc: 59.8, color: '#ef4444', width: '1.5', dash: '5 3' },\n    { Qtc: 0.632, fc: 54.0, color: '#4ade80', width: '2.2' },\n    { Qtc: 0.585, fc: 50.0, color: '#60a5fa', width: '1.5', dash: '5 3' }\n  ]);\n\n  drawGraph('arc8-d4-graph', [\n    { Qtc: 0.774, fc: 52.9, color: '#ef4444', width: '1.5', dash: '5 3' },\n    { Qtc: 0.700, fc: 47.9, color: '#4ade80', width: '2.2' },\n    { Qtc: 0.649, fc: 44.4, color: '#60a5fa', width: '1.5', dash: '5 3' }\n  ]);\n\n})();\n\u003c\/script\u003e\n\n\u003cdiv style=\"background: #18181b !important; border: 1px solid #3f3f46 !important; border-radius: 8px; padding: 16px 20px; margin: 24px 0;\"\u003e\n  \u003cp style=\"color: #e4e4e7 !important; font-size: 15px; margin: 0; line-height: 1.6;\"\u003eReady to build? The \u003cstrong style=\"color: #ffffff !important;\"\u003eEnclosures tab above\u003c\/strong\u003e lists the Proline X sealed enclosures we build specifically for this driver, CNC-cut in Tullahoma, Tennessee to the dimensions the numbers above call for.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Arc Audio","offers":[{"title":"Dual 2 Ohm","offer_id":40328347910233,"sku":"ARC8 D2","price":218.0,"currency_code":"USD","in_stock":true},{"title":"Dual 4 Ohm","offer_id":40328347943001,"sku":"ARC8 D4","price":218.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/products\/arc-audio-arc-series-8-inch-subwoofersubwooferarc-audio-645810.webp?v=1761969162"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/collections\/arc-audio-subwoofers-6444511.jpg?v=1764509895","url":"https:\/\/audiointensity.com\/collections\/arc-audio-subwoofers.oembed?page=3","provider":"Audio Intensity","version":"1.0","type":"link"}