Professional Series Ported 12" Enclosure Skar Audio VD-12 · Single 12" Ported enclosure

Sealed, the VD-12 needs 2.35 cubic feet net to reach a Qtc of 0.707. Vented, it trades that for deeper extension. The slot is gated at 600 W, 1.2 times Skar's rating: the channel runs 18.5 m/s and the mouth 10.4, and the cone peaks at 8.2 of its 11 mm with the subsonic filter in place. Skar's own ported recommendation is 1.75 cubic feet at 36 Hz, before driver and port displacement. 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.

The VD-12 also builds in the Performance Optimized ported wedge and ported down-fire, the smaller and cheaper boxes. The Professional cabinet is the step up for it: a 2.25 inch three-layer baffle with the woofer flush in the outer layer, and a slot port gated at 600 W. 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 one kit.

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 74 percent of its usable travel at 600 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, 1.48 cubic feet vented at 34.0 Hz, against Skar Audio's recommended sealed box, 1.00 cu ft, so you can judge it yourself.

It is a vertical slot beside the woofer, the full height of the cavity, 1.50 inches wide and 21.8 square inches. It runs 6.00 inches to the back wall and turns once along it for 15.46 inches; the fold costs about 1.5 Hz and the port is cut for it. The channel runs at 18.5 metres per second at 600 W, 48 percent of its turbulence limit, and the mouth edges carry a 1/2 inch roundover so the air leaves the face at 10.4 metres per second against the 17 metres per second threshold where a slot starts to chuff.

52 lb, 32.00" W x 16.00" H x 11.25" D external. Every Professional cabinet is priced the same way, by its size: this one is 3.33 cubic feet outside. Delivery to the 48 states is inside the price; it ships as a 52 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 1.48 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.