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Proline X
Dual Arc Audio X2 12 + Matching Proline X Enclosure | Bundle, Box 50% Off
SKU: BNDL-X2-12D-D4-Grey
$ 572.99
$ 687.99
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$ 115.00
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Free shipping, anywhere in the lower 48
A subwoofer plus a wood enclosure is real freight, and it adds up fast, especially coast to coast. We cover all of it, every bundle, every state. The price you see is the price at your door, with nothing added at checkout.
Dual Arc Audio X2 12 + Matching Proline X Enclosure | Bundle, Box 50% Off
Includes Shipping
On orders over $99
Full Warranty
Authorized Dealer
Lifetime Support
Real Installers
The Bundle
Two Arc Audio X2 12 subwoofers and the matching Proline X dual 12 Performance Wedge enclosure, sold as one unit. Through the July event the enclosure is 50 percent off, so you get the box at half price and the whole system ships as a single part number. One add to cart, one delivery.
Pick your voice coil above, D2 or D4, applied to both subs. The enclosure is the P12-WDS III, a 2.0 cubic foot common-chamber sealed wedge with an angled back that reclaims trunk space behind the rear seat, cut and built in house in Tullahoma, Tennessee, pre-wired with 12 gauge OFC.
In The Box
▸Two Arc Audio X2 12 subwoofers (both D2 or both D4)
▸One Proline X P12-WDS III 2.0 cu ft dual sealed wedge enclosure, pre-wired
▸1 year enclosure warranty
Arc Audio X2V2 12 Subwoofer, x2
Two X2V2 12s fill a cabin without asking much from the amplifier. Each is 250 watts RMS with 85.95 dB sensitivity and 15mm of one-way Xmax, backed by the full X2V2 cooling system: a two-inch copper-coated aluminum coil on Kapton anodized black, an eight-vent four-spoke basket, a T-Yoke vent, and double-stacked magnets. A large rubber surround and woven-in tinsel leads keep them alive in a daily driver.
Pick your coil by your amplifier, applied to both subs. Two D2 wire to 1 ohm in parallel or 4 ohms in series. Two D4 wire to 2 ohms in parallel or 8 ohms in series. The T/S parameters differ slightly between D2 and D4, so choose the coil first. Confirm your amp's stable impedance before selecting.
Key Specs (each driver)
Power250 W RMS / 500 W peak
Voice coilDual 2 or Dual 4 ohm, 2 in
Xmax15 mm one-way
Mounting depth6.75 in
Cutout11.11 in
Sensitivity85.95 dB (D2)
Recommended sealed volume1.15 cu ft each (0.9 to 1.55 range)
Proline X Performance Wedge P12-WDS III
A dual 12 inch sealed wedge with a common 2.0 cubic foot chamber. The angled back tapers to match the recline of a rear seat, reclaiming upper trunk space versus a rectangular dual box of the same volume. CNC cut and hand-assembled in Tullahoma.
Dimensions & Fitment
Net internal volume2.0 cu ft common chamber, sealed
External W x H x D28 x 14.5 x 13.75 in (tapers to 8.5 in deep at top)
Subwoofer cutoutUp to 11.13 in, two cutouts
Max mounting depth8.5 in
Panel stock3/4 in Langboard Elite MDF
Both X2 12s fit with room to spare: each 11.11 in cutout and 6.75 in depth sit inside the box's limits, and after the two drivers displace it, the 2.0 cu ft chamber nets about 0.93 cu ft per driver, near Arc's 0.9 minimum for a tight, punchy sealed alignment.
How It Is Built
▸Langboard Elite MDF, 3/4 inch panels, 48.5 lb/ft³ density and 200 psi internal bond
▸CNC cut on our ShopSabre industrial routers in Tullahoma
▸V-groove and dado joinery. The angled panels mechanically interlock before glue, so the wedge's angled joints stay airtight under bass pressure cycling
▸Internal bracing throughout the common 2.0 cu ft chamber, controlling panel resonance across the 28 inch width
▸Single baffle with two recessed cutouts and a recessed terminal cup, protected from cargo contact
▸Hand-assembled and inspected in Tennessee, no overseas manufacturing
Ready To Install
WiringPre-wired, 12 gauge OFC
Terminal cupABS / carbon fiber, copper ring terminals
FinishDark Gray Trunkliner
Warranty1 year
Why This Works
Two X2 12s in a common 2.0 cubic foot sealed chamber work out to about 1.0 cubic foot per driver, at the tight, punchy end of Arc's 0.9 to 1.55 range. The X2V2 is a high-Qts driver, so that lands the warm midbass lift and impact it was voiced for, now doubled, with the output of two 12s from one enclosure.
The wedge earns its keep on packaging. Its angled back matches the recline of a rear seat, so it reclaims the triangular void a rectangular dual box wastes, without giving up sealed airspace. At 28 inches wide, internal bracing runs the full common chamber so the box stays rigid and inert under the output of two drivers.
It ships pre-wired and ready to bolt in, both cutouts bored to the X2 12's exact fitment. Two D2 wire to a 1 ohm parallel load, two D4 to 2 ohms, so you can land your monoblock where it is most stable and let both drivers work cleanly.
The Bottom Line
This is a fixed bundle, so the box is locked to the subs. There is no wrong enclosure to order by mistake. The right sealed box for two 12s, built in house, at half price.
Bundle FAQs
How does the bundle discount work?
The Proline X Performance Wedge dual enclosure is 50 percent off when you buy it with two X2 12 subwoofers in this bundle. The pair of subs stays at 458.00 dollars, the enclosure drops from 229.99 to 114.99, so the bundle is 572.99 instead of the 687.99 combo retail. You save 115 dollars, in one add to cart.
Can I buy the enclosure separately at the bundle price?
No. The 50 percent enclosure price only exists inside this bundle. On its own the P12-WDS III dual wedge enclosure is 229.99. Buying the subs and box together as the bundle is the only way to get the box at half price.
What ships with the bundle?
Two Arc Audio X2 12 subwoofers in the voice coil you select, and one Proline X P12-WDS III 2.0 cubic foot dual sealed wedge enclosure in Dark Gray Trunkliner, pre-wired with 12 gauge OFC. Everything ships together as a single unit from Tullahoma, Tennessee.
Should I choose the D2 or D4 voice coil?
Choose by your amplifier, and both subs come in that coil. Two dual 2 ohm (D2) subs wire to a 1 ohm parallel load or 4 ohm series, which suits 1-ohm monoblocks. Two dual 4 ohm (D4) subs wire to 2 ohms parallel or 8 ohms series. Both cost the same in the bundle. Confirm your amp's stable impedance, and if you are unsure, tell us your amp and we will point you to the right one.
Is the enclosure the right size for two X2 12s?
Yes. The P12-WDS III is a common 2.0 cubic foot sealed chamber, about 1.0 cubic foot per driver, inside Arc's 0.9 to 1.55 range for the X2 12 and near the tight end for punchy sealed output. Both cutouts are bored to 11.13 inches, and each driver's 11.11 inch cutout and 6.75 inch depth clear the box with room to spare.
What warranty comes with the bundle?
Each Arc Audio X2 12 carries Arc Audio's 1-year warranty through authorized dealers, and Audio Intensity is one. The Proline X enclosure carries a 1-year warranty. You also get lifetime install support from real installers.
