JL Audio 10W1v3 Dual Box: Sealed 10" Down Fire Enclosure Dual 10" Sealed enclosure

The 10W1v3, yes, in both the 2 ohm and the 4 ohm version. The baffle is cut to 9.0625 in, JL's published mounting hole, under the 10.5 in frame. The 4.60 inch motor clears the cabinet with 2.52 inch to spare. Run two of the same coil so the chambers match.

Any other 10, no. The airspace is engineered around the 10W1v3's own Qts and Vas, and a different woofer that happened to drop into the hole would not see the alignment printed on this page.

0.55 cubic feet net per chamber on JL's published figures: the 2 ohm version reads Qtc 0.854 with resonance at 49.4 Hz and half power at 42.3 Hz, and the 4 ohm version reads Qtc 0.868 with resonance at 50.9 Hz and half power at 43.1 Hz. One cabinet serves both versions. The volume is JL's own recommended sealed airspace for the 10W1v3, 0.55 cubic feet per driver, and on JL's published parameters this chamber reproduces JL's printed Qtc, fc and F3 for both versions. That is above maximally flat: punchy, with a clear lift near resonance and extra midbass, the alignment JL itself recommends.

Cabinet gain in a vehicle lifts the bottom end further, so in the car this reads deeper than the anechoic figures.

JL rates the 10W1v3 at 300 watts RMS per driver, so target 210 to 300 watts RMS per driver at the final load.

JL sells the 10W1v3 as a single voice coil driver in a 2 ohm and a 4 ohm version; a matched pair should share an impedance. A pair of 2 ohm versions lands on 4 ohms in series or 1 ohm in parallel. A pair of 4 ohm versions lands on 2 ohms in parallel or 8 ohms in series. Many amplifiers are not stable at 1 ohm, so on the 2 ohm version series wiring to 4 ohms is the safe default. Confirm your amplifier's minimum stable impedance first.

The cabinet is 7.87 inches tall measured in the down fire position, and that figure excludes the standoffs. The standoffs hold 1.75 inches under the baffle, so plan your space around a finished stack of roughly 9.62 inches.

The footprint is the standard Performance Optimized down fire platform, 30.00 inches wide by 15.00 deep. Height is the only dimension solved to the driver.

Two drivers sharing one sealed volume load each other: each driver's compression stroke becomes the pressure the other works against, which blurs the alignment either would have alone. A bonded full-height 3/4 inch divider gives each driver its own 0.55 cubic feet and its own polyfill.

It also means a failure in one driver does not unload the other, and the alignment on this page is the alignment in each chamber, not an average across a shared box.

Anechoic F3 is 42.3 Hz on the 2 ohm version and 43.1 Hz on the 4 ohm version per chamber. Above Qtc 0.707 F3 sits below fc, so the response carries a small lift near resonance before it rolls off.

Those figures exclude cabin gain. In a car the cabin's transfer function adds real output below 50 Hz, so in-vehicle response runs deeper than the numbers above.

No. Polyfill is already installed in both chambers as a light wall lining to control internal reflections, and the quantity is chosen so it does not change the acoustic volume.

Do not add more. Packing a sealed box with fill makes it behave as though it were larger, which walks the alignment away from the 0.55 cubic feet per chamber this cabinet was built to.

No driver. This is an enclosure only. You receive the cabinet finished in plush black carpet, one side-mounted pre-wired terminal cup to both positions, the polyfill lining already in place, the standoffs, and stainless machine screws.

The threaded inserts are already pressed on JL's 9.7 inch bolt circle, so the 10W1v3 drops in and bolts down. The pair of JL Audio 10W1v3 is purchased separately, and the cabinet is cut direct fit to it, not a general purpose 10 inch box.