JL Audio 12TW3 Sealed Shallow Down Fire Enclosure, Dual 12″

JL Audio 12TW3 dual sealed shallow down fire enclosure, 12-inch, with 1.72 cubic feet of net airspace at a system Qtc of 0.920 and an anechoic F3 of 37.6 Hz.

At Qtc 0.920 the box is small for the driver and the response peaks before it falls away. It is the right call where space is the constraint and output per cubic foot matters.

Firing into the floor, the sealed rolloff meets rising cabin gain below about 60 Hz, so in-car extension runs below the anechoic figure above.

Down-firing puts the cone against the floor: protected from whatever rides in the trunk, with a usable flat top. Shallow build for limited depth behind a seat or in a hatch; the mounting-depth figure below is the one to check.

Construction: 3/4-inch MDF with a double-layer 1.5-inch front baffle, the outer layer recessed so the driver sits flush, V-groove and dado joinery at the panel seams. Carpeted in black, polyfill pre-installed and pre-wired terminal cup fitted.

Check your driver's mounting depth against the 3.5-inch figure in the specifications. Each driver has its own sealed chamber. If you are between two drivers, send both model numbers and we will tell you which one this volume suits.

Questions on fit or matching? Call or text (775) 541-2950 with your vehicle and the gear you are running.

Specifications

• Enclosure type: Sealed
• Drivers: Dual, 12-inch
• Net volume: 1.72 cu ft
• System Qtc: 0.920
• F3 (anechoic): 37.6 Hz
• Max driver mounting depth: 3.5 in
• Height: 10.75 in
• Front baffle: Double layer, 1.5 in
• Chambers: One per driver
• Fits: JL Audio 12TW3