Professional Series Ported Dual 15" Enclosure Skar Audio EVL-15 · Dual 15" 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 61.9 square inches of area at 34.0 Hz, and the design power for the velocity and excursion checks is 3000 W for the pair. Passband ripple holds at 1.96 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 EVL-15 also builds in the Performance Optimized ported wedge, 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 3000 W for the pair. It carries a 2 year warranty, against 1 year on the Performance Optimized lines.

Skar Audio does not publish the mounting hole locations for the EVL-15, so we cannot install the threaded inserts before it ships. The threaded insert kit comes in the box instead: inserts sized to the woofer, the correct drill bit, 2.5 inch allen-head screws, an allen key and woofer gasket tape. You set the inserts when you mount the woofer, and this box ships with two kits, one per woofer.

Yes, at 27 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 Skar Audio EVL-15 at 38 percent of its usable travel at 3000 W.

Below about 24 Hz, yes. The maker's recommended sealed box is louder down there by up to 2.9 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, 3.41 cubic feet vented at 34.0 Hz, against Skar Audio's recommended range (low end) sealed box, 3.00 cu ft per driver, 6.00 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, 3.75 inches wide and 61.9 square inches. It runs 7.62 inches to the back wall and turns once along it for 15.86 inches; the fold costs about 1.5 Hz and the port is cut for it. The channel runs at 21.6 metres per second at 3000 W, 38 percent of its turbulence limit, and the mouth edges carry a 1/2 inch roundover so the air leaves the face at 16.0 metres per second against the 17 metres per second threshold where a slot starts to chuff.

73 lb, 46.00" W x 18.00" H x 15.12" D external. Every Professional cabinet is priced the same way, by its size: this one is 7.25 cubic feet outside. Delivery to the 48 states is inside the price; it ships as a 73 lb parcel and checkout adds nothing. Do not add polyfill; it ships dry on purpose.

No. This is an enclosure only, cut for the Skar Audio EVL-15 specifically: the 14.000 inch cutout, the 8.540 inch mounting depth allowance and the 3.41 cubic foot alignment all come from Skar Audio's published parameters. It fits both coil versions (D2 and D4), and the cabinet was checked against both. Bring your own driver.