Professional Series Ported Dual 12" Enclosure Skar Audio VD-12 · Dual 12" 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 36.2 square inches of area at 34.0 Hz, and the design power for the velocity and excursion checks is 1200 W for the pair. Passband ripple holds at 1.11 dB across the tuning, with F3 at 36.5 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 VD-12 also builds in the Performance Optimized ported wedge and ported down-fire, the smaller and cheaper single-driver boxes. 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.

Skar Audio does not publish the mounting hole locations for the VD-12, 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 VD-12 at 73 percent of its usable travel at 1200 W.

The two alignments converge at the bottom of the band on this driver rather than crossing cleanly, so there is no meaningful subsonic advantage either way. Above 25 Hz the vent is the louder of the two for the same power. The Performance Graphs tab plots this cabinet, 2.86 cubic feet vented at 34.0 Hz, against Skar Audio's recommended sealed box, 1.00 cu ft per driver, 2.00 cu ft for the pair, so you can judge it yourself.

It is a vertical slot beside the woofer, the full height of the cavity, 2.50 inches wide and 36.2 square inches. It runs 8.00 inches to the back wall and turns once along it for 6.89 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 1200 W, 47 percent of its turbulence limit, and the mouth edges carry a 1/2 inch roundover so the air leaves the face at 14.4 metres per second against the 17 metres per second threshold where a slot starts to chuff.

60 lb, 40.00" W x 16.00" H x 14.25" D external. Every Professional cabinet is priced the same way, by its size: this one is 5.28 cubic feet outside. Delivery to the 48 states is inside the price; it ships as a 60 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 VD-12 specifically: the 11.280 inch cutout, the 4.950 inch mounting depth allowance and the 2.86 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.