Performance Optimized Down Fire Wide Sealed Dual 10" Enclosure JL Audio 10W6v3 · Dual 10" Sealed enclosure

Because it is only 12 inches deep. Our standard Performance Optimized Down Fire cabinet for this driver is 30 wide by 15 deep, and this one is built for spaces three inches shallower than that, typically under the rear seat of a truck or SUV or on a narrow cargo floor.

Airspace has to come from somewhere. Losing depth means recovering it along the length, so the cabinet runs 41 inches long and stands 8.4375 inches tall, and still keeps each driver in a properly sized separate chamber. If your space is wide and shallow rather than deep, this is the shape that works.

Same driver, different shape. The standard cabinet is 30 by 15 by 8.5625 inches and holds 0.58 cubic feet net per driver. This cabinet is 41 by 12 by 8.4375 inches and holds 0.632 cubic feet net per driver.

The wide cabinet holds more air because its height is set by the driver's mounting depth rather than by a volume target, and a larger sealed box runs a slightly lower Qtc, which is the safe direction. Choose on the space: with 15 inches of depth the standard cabinet is the pick; if depth stops at 12 inches and you have 41 inches of run, this one fits.

Close, on the larger side. JL Audio recommends a 0.55 cubic foot sealed box per 10W6v3-D4, and each chamber here holds 0.632 cubic feet net because the driver's 6.89 inch mounting depth sets the cabinet height.

That gives Qtc 0.778, Fc 45.7 Hz, F3 41.9 Hz per driver. The extra air moves the alignment toward the better damped side of JL's box, which is the safe direction for a sealed enclosure.

The W6v3 uses a pair of main input push terminals plus four voice coil configuration tabs behind them. Both voice coils must be connected or the driver will produce no output and may be damaged; JL supplies the jumpers.

Parallel is the factory configuration and gives 2 ohms per driver, series gives 8 ohms. Set both drivers identically; the shared side-mounted cup is pre-wired in 12 gauge OFC to both positions in parallel, so the pair presents 1 ohm or 4 ohms. Verify that load against your amplifier's minimum stable impedance before powering the system.

By driver depth. The 10W6v3-D4 mounts 6.89 inches deep; the flush-recess outer baffle layer recovers 0.75 inch, and we hold 0.75 inch above the motor, which exceeds the 0.50 inch pole-vent clearance JL Audio specifies. That sets the cabinet at 8.4375 inches tall with 0.80 inches above each motor.

The chamber divider runs vertically, so splitting the box into two chambers does not change the depth requirement at all.

Side mounted, and there is one cup serving both chambers rather than one per chamber. Every Proline X Performance Optimized enclosure uses a side mounted terminal cup regardless of alignment, whether standard, wedge, or down fire. On this cabinet that keeps the connection fully accessible with the enclosure in its installed position, since both baffles face the floor. The cup is our Proline X ABS and carbon fiber composite unit, recessed, with stainless hardware, copper ring terminals, and pre-wired 12 gauge OFC.

V-groove and dado joinery, CNC-cut on ShopSabre routers from Langboard Elite MDF, with every joint machined to lock mechanically before adhesive goes on, which keeps both chambers airtight under sustained pressure cycling. The chamber divider is a full-height bonded 3/4 inch panel, which also ties the front and rear walls together across the 41 inch span.

Front baffles are a 1.5 inch double layer at both driver positions, with the outer layer machined as a flush recess so each driver bolts to the inner layer. Corners are square, polyfill is installed as a light wall lining in each chamber, and the 1.75 inch standoffs ship uninstalled. Assembled and inspected in Tullahoma, Tennessee.

No. This listing is for the enclosure only. Bring your own pair of JL Audio 10W6v3-D4 subwoofers. The cutouts, mounting depth and pole-vent clearance are cut specifically for this driver at both positions.