Professional Series Ported Dual 8" Enclosure JL Audio 8W7AE-3 · Dual 8" Ported enclosure

Both drivers share one chamber and one port rather than sitting in separate boxes, so the pair works against the whole volume and the port is sized for the pair rather than doubled. The port carries 25.0 square inches of area at 35.0 Hz, and the design power for the velocity and excursion checks is 1200 W for the pair. Passband ripple holds at 1.93 dB across the tuning, with F3 at 34.4 Hz. Tuning is chosen for in-car response rather than an anechoic curve: a vehicle adds roughly 12 dB per octave below about 45 Hz, and this tuning is where that sum comes out flattest across 25 to 60 Hz.

A single 8W7AE-3 also builds in the Performance Optimized ported down-fire, the smaller and cheaper single-driver box. A pair takes this Professional cabinet: one shared chamber on a 2.25 inch three-layer baffle with both woofers flush in the outer layer, and a slot port gated at 1200 W for the pair. It carries a 2 year warranty, against 1 year on the Performance Optimized lines.

Threaded inserts pressed into the baffle on the published 7.390 inch bolt circle, stainless machine screws included. The inserts are in the baffle when it arrives; the machine screws are in the terminal cup bag.

Yes, at 28 Hz, 24 dB per octave. Below tuning a vented box stops loading the cone and excursion runs away toward DC. With the filter in place this cabinet puts the JL Audio 8W7AE-3 at 58 percent of its usable travel at 1200 W.

Below about 24 Hz, yes. The maker's recommended sealed box is louder down there by up to 3.0 dB, because a sealed box rolls off gently into the subsonic region where a vented one falls away steeply once it is under tuning. Above that this alignment is the louder of the two for the same power. The Performance Graphs tab plots this cabinet, 1.32 cubic feet vented at 35.0 Hz, against JL Audio's recommended sealed box, 0.88 cu ft per driver, 1.75 cu ft for the pair, so you can see exactly where they cross.

It is a vertical slot beside the woofer, the full height of the cavity, 2.00 inches wide and 25.0 square inches. It runs 6.25 inches to the back wall and turns once along it for 21.34 inches; the fold costs about 1.5 Hz and the port is cut for it. The channel runs at 22.4 metres per second at 1200 W, 54 percent of its turbulence limit, and the mouth edges carry a 1/2 inch roundover so the air leaves the face at 13.8 metres per second against the 17 metres per second threshold where a slot starts to chuff.

51 lb, 34.00" W x 14.00" H x 12.00" D external. Every Professional cabinet is priced the same way, by its size: this one is 3.31 cubic feet outside. Delivery to the 48 states is inside the price; it ships as a 51 lb parcel and checkout adds nothing. Do not add polyfill; it ships dry on purpose.

No. This is an enclosure only, cut for the JL Audio 8W7AE-3 specifically: the 6.940 inch cutout, the 6.830 inch mounting depth allowance and the 1.32 cubic foot alignment all come from JL Audio's published parameters. It fits both coil versions; the alignment published here is the Single 3 Ohm. Bring your own driver.