{"product_id":"proline-x-p10-s-df-single-10-sealed-down-fire-subwoofer-enclosure","title":"Proline X P10-S DF | Single 10\" Sealed Down Fire Subwoofer Enclosure","description":"\u003cdiv class=\"df-wrap\"\u003e\n\u003cstyle\u003e\n.df-wrap{font-family:-apple-system,BlinkMacSystemFont,\"Segoe UI\",Roboto,Helvetica,Arial,sans-serif;line-height:1.7;color:#cbd5e1 !important;}\n.df-wrap p{color:#cbd5e1 !important;margin:0 0 14px 0;}\n.df-wrap ul{margin:0 0 16px 0;padding-left:20px;}\n.df-wrap li{color:#cbd5e1 !important;margin-bottom:8px;}\n.df-wrap strong{color:#67e8f9 !important;}\n.df-wrap a{color:#22d3ee !important;font-weight:700;text-decoration:underline;}\n.df-hero{background:linear-gradient(135deg,#0f172a 0%,#0e7490 100%) !important;border-radius:8px;padding:32px 28px;margin-bottom:28px;}\n.df-eyebrow{display:inline-block;color:#67e8f9 !important;font-size:0.72em;font-weight:700;letter-spacing:0.14em;text-transform:uppercase;margin-bottom:10px;}\n.df-hero h2{color:#ffffff 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!important;}\n.df-clearance{background:#0f172a !important;border:2px solid #06b6d4 !important;border-radius:8px;padding:22px 24px;margin:28px 0;}\n.df-clearance-label{display:inline-block;background:#06b6d4 !important;color:#04222b !important;font-size:0.68em;font-weight:700;letter-spacing:0.1em;text-transform:uppercase;padding:4px 11px;border-radius:3px;margin-bottom:12px;}\n.df-clearance h3{margin-top:0;}\n.df-card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin:24px 0;}\n@media(max-width:600px){.df-card-grid{grid-template-columns:1fr;}}\n.df-card{background:#1a2740 !important;border:1px solid #2c405c !important;border-top:3px solid #06b6d4 !important;border-radius:6px;padding:22px;}\n.df-card-label{display:inline-block;background:#06b6d4 !important;color:#04222b !important;font-size:0.68em;font-weight:700;letter-spacing:0.1em;text-transform:uppercase;padding:3px 10px;border-radius:3px;margin-bottom:10px;}\n.df-card h4{margin:0 0 10px 0;}\n.df-card-divider{height:2px;background:#06b6d4 !important;width:32px;margin-bottom:12px;border-radius:2px;}\n.df-card p{font-size:0.93em;color:#b6c4d6 !important;margin:0;line-height:1.65;}\n.df-card p strong{color:#67e8f9 !important;}\n.df-table{width:100% !important;border-collapse:collapse;margin:22px 0;font-size:0.94em;}\n.df-table th{background:#0e7490 !important;color:#ffffff !important;text-align:left;padding:11px 14px;font-weight:700;font-size:0.9em;letter-spacing:0.04em;text-transform:uppercase;border-bottom:1px solid #22384f !important;}\n.df-table td{padding:10px 14px;border-bottom:1px solid #22384f !important;color:#dbe4ef !important;background:#111c30 !important;}\n.df-table tr:nth-child(even) td{background:#1a2740 !important;}\n.df-table td:first-child{font-weight:600;color:#67e8f9 !important;width:34%;}\n.df-chartbox{display:block !important;width:100% !important;max-width:100% !important;margin:22px 0 !important;}\n.df-chart{display:block !important;width:100% !important;max-width:100% !important;height:auto !important;}\n.df-cta{background:linear-gradient(135deg,#0f172a 0%,#0e7490 100%) !important;border-radius:8px;padding:28px 26px;margin:32px 0 0 0;text-align:center;}\n.df-cta h3{color:#ffffff !important;margin:0 0 10px 0;}\n.df-cta p{color:#e2e8f0 !important;margin:0;font-size:0.97em;}\n.df-cta a{color:#a5f3fc !important;}\n\u003c\/style\u003e\n\n\u003cdiv class=\"df-hero\"\u003e\n\u003cspan class=\"df-eyebrow\"\u003eProline X | Performance Down Fire\u003c\/span\u003e\n\u003ch2\u003eFive and a Half Inches Tall. Firing Into the Floor.\u003c\/h2\u003e\n\u003cp\u003eA shallow sealed enclosure for a single 10 inch subwoofer, built to disappear under a cargo cover or behind a seat back. The driver faces down, the top of the cabinet stays flat and usable, and the whole thing stands 7.25 inches tall with the feet installed.\u003c\/p\u003e\n\u003cdiv class=\"df-badges\"\u003e\n\u003cspan class=\"df-badge\"\u003e0.60 CU FT NET\u003c\/span\u003e\n\u003cspan class=\"df-badge\"\u003e5.5 IN CABINET\u003c\/span\u003e\n\u003cspan class=\"df-badge\"\u003e4.75 IN MAX DEPTH\u003c\/span\u003e\n\u003cspan class=\"df-badge\"\u003eDOWN FIRE OR FORWARD FIRE\u003c\/span\u003e\n\u003cspan class=\"df-badge\"\u003eFEET INCLUDED\u003c\/span\u003e\n\u003cspan class=\"df-badge\"\u003eBUILT IN TULLAHOMA, TN\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-warn\"\u003e\n\u003cspan class=\"df-warn-label\"\u003eRead This First\u003c\/span\u003e\n\u003ch3\u003eThis Is a Shallow Mount Enclosure\u003c\/h3\u003e\n\u003cp\u003eMaximum driver mounting depth is \u003cstrong\u003e4.75 inches\u003c\/strong\u003e. That is the number that decides whether this enclosure works for you, and it rules out the majority of conventional 10 inch subwoofers, which typically need somewhere between 5.5 and 7 inches.\u003c\/p\u003e\n\u003cp\u003eThis box is built for \u003cstrong\u003eshallow mount and slim profile 10s\u003c\/strong\u003e. Check your driver's published mounting depth against 4.75 inches before you order. If your driver needs more than that, our forward fire P10-S allows 6.25 inches and is the better choice.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n\u003ch3\u003eBuilt Around a Constraint, Not Around a Driver\u003c\/h3\u003e\n\u003cp\u003ePerformance Down Fire enclosures are sized by driver diameter rather than cut for one specific subwoofer. This one takes any 10 inch driver with a \u003cstrong\u003e9.25 inch cutout\u003c\/strong\u003e and a mounting depth of 4.75 inches or less, and gives it \u003cstrong\u003e0.60 cubic feet of net airspace\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe design brief was height. At 5.5 inches of cabinet the enclosure fits places a conventional 10 inch box cannot go, and turning the driver toward the floor is what makes that height possible, because the baffle no longer has to face outward into the cargo area.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section-alt\"\u003e\n\u003ch3\u003eWhy Down Fire\u003c\/h3\u003e\n\u003cp\u003eTurning the driver toward the floor is not a styling decision. It changes what the enclosure does to the space around it and what the space around it can do to the enclosure.\u003c\/p\u003e\n\u003cdiv class=\"df-card-grid\"\u003e\n\u003cdiv class=\"df-card\"\u003e\n\u003cspan class=\"df-card-label\"\u003eBoundary\u003c\/span\u003e\u003cdiv class=\"df-card-divider\"\u003e\u003c\/div\u003e\n\u003ch4\u003eThe Floor Is Right There\u003c\/h4\u003e\n\u003cp\u003eThe driver radiates into a hard surface 1.75 inches away. In a trunk or cargo area that reinforcement, combined with cabin gain, is what makes a compact sealed box feel bigger than its airspace.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-card\"\u003e\n\u003cspan class=\"df-card-label\"\u003eProtection\u003c\/span\u003e\u003cdiv class=\"df-card-divider\"\u003e\u003c\/div\u003e\n\u003ch4\u003eNothing Lands on the Cone\u003c\/h4\u003e\n\u003cp\u003eGroceries, tools, luggage, and dogs never touch a surround that is facing down. The most common cause of a damaged subwoofer in a daily driven vehicle is \u003cstrong\u003ecargo, not power\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-card\"\u003e\n\u003cspan class=\"df-card-label\"\u003ePackaging\u003c\/span\u003e\u003cdiv class=\"df-card-divider\"\u003e\u003c\/div\u003e\n\u003ch4\u003eA Flat Top You Can Use\u003c\/h4\u003e\n\u003cp\u003eNo basket, no grille, no protrusion. The top of the cabinet is a flat carpeted surface, which in most vehicles means you get the cargo floor back instead of building around a box.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-card\"\u003e\n\u003cspan class=\"df-card-label\"\u003eFlexibility\u003c\/span\u003e\u003cdiv class=\"df-card-divider\"\u003e\u003c\/div\u003e\n\u003ch4\u003eNot Locked Into One Orientation\u003c\/h4\u003e\n\u003cp\u003eThe feet ship without predrilled holes on purpose. Mount them where your floor wants them, or leave them off entirely and run the cabinet \u003cstrong\u003eforward firing\u003c\/strong\u003e if your install calls for it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-clearance\"\u003e\n\u003cspan class=\"df-clearance-label\"\u003eFeet and Clearance\u003c\/span\u003e\n\u003ch3\u003eWhat Ships With the Enclosure\u003c\/h3\u003e\n\u003cp\u003eFour feet come standard with every Performance Down Fire enclosure. There is no upgrade tier and no separate accessory to buy.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eABS and carbon fiber composite\u003c\/strong\u003e, machined in house on the same equipment as our terminal cups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1.75 inches of lift\u003c\/strong\u003e, which sets the working air gap between the baffle and the floor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo predrilled mounting holes\u003c\/strong\u003e, so the enclosure is never locked into a single orientation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall height with feet installed: 7.25 inches.\u003c\/strong\u003e Cabinet alone is 5.5 inches.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"df-alert\"\u003e\u003cp\u003e\u003cstrong\u003eKeep the gap clear.\u003c\/strong\u003e The 1.75 inch space under the baffle is the air path, not empty room. A spare tire, a toolbox, or a folded moving blanket pressed against the opening will choke the output. Down fire systems that sound dead almost always have something jammed underneath them.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section-alt\"\u003e\n\u003ch3\u003eHow It Is Built\u003c\/h3\u003e\n\u003cdiv class=\"df-highlight\"\u003e\n\u003ch3\u003eCabinet\u003c\/h3\u003e\n\u003cp\u003eCut on our ShopSabre CNC from Langboard Elite MDF and assembled with V groove and dado joinery, with internal bracing and a single 0.75 inch baffle. Every panel meets on a machined joint rather than a butt seam, so the cabinet stays rigid and puts its energy into the driver instead of the panels.\u003c\/p\u003e\n\u003ch3\u003eMounting Hardware\u003c\/h3\u003e\n\u003cp\u003eThis is a generic enclosure sized by driver diameter, which means we do not know which subwoofer is going into it and cannot machine a bolt pattern for it. \u003cstrong\u003eThe baffle ships as a solid mounting flange and you drill your own mounting holes to match your driver.\u003c\/strong\u003e Threaded inserts are a feature of our Performance Optimized line, where the enclosure is cut for one named subwoofer and the bolt circle is drawn in CAD from the actual driver.\u003c\/p\u003e\n\u003cp\u003eThe MDF we use is dense. \u003cstrong\u003ePredrill your mounting holes.\u003c\/strong\u003e Driving screws straight into it without a pilot hole will split the baffle or strip the screw.\u003c\/p\u003e\n\u003ch3\u003eWiring and Damping\u003c\/h3\u003e\n\u003cp\u003eThe Proline X ABS and carbon fiber composite terminal cup is \u003cstrong\u003eside mounted\u003c\/strong\u003e, which keeps the connection accessible with the enclosure sitting on its feet. Pre wired with 12 gauge OFC. Polyfill is installed before the enclosure leaves the shop.\u003c\/p\u003e\n\u003ch3\u003eFinish\u003c\/h3\u003e\n\u003cp\u003eDark gray trunk liner standard, plush black available. The lasered acrylic badge mounts on the front face rather than the woofer face, so it stays visible in the down fire orientation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eThe cabinet measures \u003cstrong\u003e24.5 inches wide by 13.5 inches deep by 5.5 inches tall\u003c\/strong\u003e, or 7.25 inches tall with the feet installed and the enclosure sitting in the down fire position.\u003c\/p\u003e\n\u003cdiv class=\"df-alert\"\u003e\u003cp\u003e\u003cstrong\u003eTwo numbers decide this purchase.\u003c\/strong\u003e Driver mounting depth against 4.75 inches, and cabinet height against the space you have. Width and depth are generous because the height had to come from somewhere. Measure the footprint before you order.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n\u003ch3\u003eEnclosure Performance\u003c\/h3\u003e\n\u003cp\u003eThis enclosure is sized by driver diameter rather than cut for one subwoofer, so there is no single response curve for it. What the alignment does depends entirely on the driver you put in, and specifically on its total Q.\u003c\/p\u003e\n\u003cp\u003eThe table below models three driver profiles across the range you find in shallow mount 10s, calculated in 0.60 cubic feet. \u003cstrong\u003eThese are illustrative profiles, not published specifications for any particular subwoofer.\u003c\/strong\u003e Use them to understand the shape of the outcome, then run your own driver's real numbers.\u003c\/p\u003e\n\u003ctable class=\"df-table\"\u003e\n\u003ctr\u003e\n\u003cth\u003eDriver Profile (modeled)\u003c\/th\u003e\n\u003cth\u003eQtc\u003c\/th\u003e\n\u003cth\u003efc\u003c\/th\u003e\n\u003cth\u003eF3\u003c\/th\u003e\n\u003cth\u003eResult\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLow Q, Qts 0.40\u003cbr\u003e\u003cspan style=\"color:#94a3b8 !important;font-weight:400;font-size:0.9em;\"\u003eFs 32 Hz, Vas 0.70 cu ft\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e0.589\u003c\/td\u003e\n\u003ctd\u003e47.1 Hz\u003c\/td\u003e\n\u003ctd\u003e58.4 Hz\u003c\/td\u003e\n\u003ctd\u003eOverdamped. Rolls off early, thin on the bottom.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#14532d !important;color:#86efac !important;\"\u003e\n\u003cstrong style=\"color:#86efac !important;\"\u003eMid Q, Qts 0.50\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"color:#86efac !important;font-weight:400;font-size:0.9em;\"\u003eFs 30 Hz, Vas 0.85 cu ft\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"background:#14532d !important;color:#86efac !important;\"\u003e\u003cstrong style=\"color:#86efac !important;\"\u003e0.777\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"background:#14532d !important;color:#86efac !important;\"\u003e\u003cstrong style=\"color:#86efac !important;\"\u003e46.6 Hz\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"background:#14532d !important;color:#86efac !important;\"\u003e\u003cstrong style=\"color:#86efac !important;\"\u003e42.8 Hz\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"background:#14532d !important;color:#86efac !important;\"\u003e\u003cstrong style=\"color:#86efac !important;\"\u003eNear textbook. The target for this box.\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHigh Q, Qts 0.65\u003cbr\u003e\u003cspan style=\"color:#94a3b8 !important;font-weight:400;font-size:0.9em;\"\u003eFs 28 Hz, Vas 1.00 cu ft\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e1.061\u003c\/td\u003e\n\u003ctd\u003e45.7 Hz\u003c\/td\u003e\n\u003ctd\u003e35.1 Hz\u003c\/td\u003e\n\u003ctd\u003eImpact alignment. Lift around 45 Hz, extends lower.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003cdiv class=\"df-chartbox\"\u003e\n\u003csvg class=\"df-chart\" width=\"1260\" height=\"420\" viewbox=\"0 0 1260 420\" preserveaspectratio=\"xMidYMid meet\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"display:block !important;width:100% !important;max-width:100% !important;height:auto !important;\"\u003e\n\u003crect x=\"0\" y=\"0\" width=\"1260\" height=\"420\" fill=\"#0b1424\"\u003e\u003c\/rect\u003e\n\u003crect x=\"90\" y=\"50\" width=\"1080\" height=\"300\" fill=\"#111c30\" stroke=\"#2c405c\" stroke-width=\"1\"\u003e\u003c\/rect\u003e\n\u003cline x1=\"280\" y1=\"50\" x2=\"280\" y2=\"350\" stroke=\"#22384f\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"520\" y1=\"50\" x2=\"520\" y2=\"350\" stroke=\"#22384f\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"845\" y1=\"50\" x2=\"845\" y2=\"350\" stroke=\"#22384f\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"90\" y1=\"110\" x2=\"1170\" y2=\"110\" stroke=\"#334155\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"90\" y1=\"155\" x2=\"1170\" y2=\"155\" stroke=\"#64748b\" stroke-width=\"1\" stroke-dasharray=\"6,5\"\u003e\u003c\/line\u003e\n\u003ctext x=\"1178\" y=\"160\" font-size=\"15\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e-3 dB\u003c\/text\u003e\n\u003ctext x=\"1178\" y=\"115\" font-size=\"15\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e0 dB\u003c\/text\u003e\n\u003cpolyline points=\"90,345 112,333 135,322 158,311 180,300 202,290 225,279 247,269 270,259 292,250 315,240 337,231 360,223 382,214 405,206 428,198 450,191 472,184 495,178 518,172 540,167 562,161 585,157 608,152 630,148 652,145 675,141 698,138 720,135 742,133 765,131 787,129 810,127 832,125 855,124 877,122 900,121 923,120 945,119 968,118 990,117 1012,117 1035,116 1058,115 1080,115 1102,114 1125,114 1147,114 1170,113\" fill=\"none\" stroke=\"#64748b\" stroke-width=\"2.5\"\u003e\u003c\/polyline\u003e\n\u003cpolyline points=\"90,313 112,299 135,285 158,272 180,258 202,244 225,230 247,217 270,203 292,190 315,177 337,164 360,151 382,140 405,129 428,119 450,111 472,104 495,98 518,93 540,90 562,88 585,86 608,86 630,86 652,87 675,87 698,88 720,90 742,91 765,92 787,93 810,95 832,96 855,97 877,98 900,99 923,100 945,101 968,102 990,102 1012,103 1035,104 1058,104 1080,105 1102,105 1125,106 1147,106 1170,106\" fill=\"none\" stroke=\"#64748b\" stroke-width=\"2.5\"\u003e\u003c\/polyline\u003e\n\u003cpolyline points=\"90,328 112,316 135,304 158,291 180,279 202,267 225,255 247,243 270,232 292,221 315,210 337,199 360,189 382,179 405,170 428,162 450,154 472,147 495,141 518,135 540,130 562,126 585,122 608,119 630,117 652,115 675,113 698,112 720,111 742,110 765,109 787,109 810,108 832,108 855,108 877,108 900,108 923,108 945,108 968,108 990,108 1012,108 1035,108 1058,109 1080,109 1102,109 1125,109 1147,109 1170,109\" fill=\"none\" stroke=\"#22d3ee\" stroke-width=\"4.5\"\u003e\u003c\/polyline\u003e\n\u003ctext x=\"82\" y=\"375\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e20\u003c\/text\u003e\n\u003ctext x=\"272\" y=\"375\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e30\u003c\/text\u003e\n\u003ctext x=\"512\" y=\"375\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e50\u003c\/text\u003e\n\u003ctext x=\"833\" y=\"375\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e100\u003c\/text\u003e\n\u003ctext x=\"1158\" y=\"375\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e200\u003c\/text\u003e\n\u003ctext x=\"560\" y=\"404\" font-size=\"17\" fill=\"#22d3ee\" font-family=\"sans-serif\" font-weight=\"700\"\u003eFrequency (Hz)\u003c\/text\u003e\n\u003ctext x=\"48\" y=\"56\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e+4\u003c\/text\u003e\n\u003ctext x=\"58\" y=\"190\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e-5\u003c\/text\u003e\n\u003ctext x=\"48\" y=\"265\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e-10\u003c\/text\u003e\n\u003ctext x=\"48\" y=\"340\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e-15\u003c\/text\u003e\n\u003ctext x=\"102\" y=\"36\" font-size=\"16\" fill=\"#67e8f9\" font-family=\"sans-serif\" font-weight=\"700\"\u003eModeled in 0.60 cu ft. Anechoic half-space, no cabin gain.\u003c\/text\u003e\n\u003cline x1=\"820\" y1=\"270\" x2=\"870\" y2=\"270\" stroke=\"#22d3ee\" stroke-width=\"4.5\"\u003e\u003c\/line\u003e\n\u003ctext x=\"882\" y=\"276\" font-size=\"16\" fill=\"#e2e8f0\" font-family=\"sans-serif\" font-weight=\"700\"\u003eMid Q, Qts 0.50\u003c\/text\u003e\n\u003cline x1=\"820\" y1=\"302\" x2=\"870\" y2=\"302\" stroke=\"#64748b\" stroke-width=\"2.5\"\u003e\u003c\/line\u003e\n\u003ctext x=\"882\" y=\"308\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003eLow Q 0.40 and High Q 0.65\u003c\/text\u003e\n\u003c\/svg\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-alert\"\u003e\u003cp\u003e\u003cstrong\u003eWhat the numbers are telling you.\u003c\/strong\u003e A 0.60 cubic foot sealed box wants a driver in the middle of the Q range. Drop in a low Q driver and you get an overdamped alignment that gives up real low end. Drop in a high Q driver and you get a lift in the upper bass with deeper extension, which is a legitimate choice if impact is what you want. There is no wrong answer here, but there is a wrong assumption, which is that any 10 will behave the same way in this box.\u003c\/p\u003e\u003c\/div\u003e\n\n\u003ch4\u003eAbout the Polyfill\u003c\/h4\u003e\n\u003cp\u003eThe 0.60 cubic foot figure is \u003cstrong\u003ephysical net airspace\u003c\/strong\u003e, measured after subtracting bracing and typical driver displacement. It is the number to enter into a modeling program. Polyfill is installed at the correct density before the enclosure ships, which typically makes a sealed box behave as though it were roughly 10 to 15 percent larger. We quote the physical volume rather than the effective one, so the number you see is the number you can verify.\u003c\/p\u003e\n\u003cp\u003eRun your own driver's parameters through the \u003ca href=\"\/pages\/sealed-box-calculator\"\u003eSealed Box Calculator\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n\u003cp\u003eFull dimensions, cutout, mounting depth, and hardware details are listed under the \u003cstrong\u003eEnclosures\u003c\/strong\u003e tab.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-cta\"\u003e\n\u003ch3\u003eShallow, Down Firing, Built in Tennessee.\u003c\/h3\u003e\n\u003cp\u003eEvery Performance Down Fire enclosure is built to order in Tullahoma, Tennessee on our own CNC equipment. Questions on driver depth or whether your subwoofer suits this alignment, call or text 707-999-3071.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Dark Gray Trunkliner","offer_id":44465466966105,"sku":"P10-S DF-GRY","price":169.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black","offer_id":44465466998873,"sku":"P10-S DF-BLK","price":179.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/P10-SDF.png?v=1785896062","url":"https:\/\/audiointensity.com\/products\/proline-x-p10-s-df-single-10-sealed-down-fire-subwoofer-enclosure","provider":"Audio Intensity","version":"1.0","type":"link"}