Professional Series Ported 15" Enclosure NVX VCW15v3 · Single 15" Ported enclosure

Sealed, the VCW15v3 needs 7.61 cubic feet net to reach a Qtc of 0.707. Vented, it trades that for deeper extension. The slot is gated at 1800 W, 1.2 times NVX's rating: the channel runs 22.0 m/s and the mouth 14.4, and the cone peaks at 11.6 of its 23 mm with the subsonic filter in place. 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 VCW15v3 also builds in the Performance Optimized ported wedge, the smaller and cheaper box. 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 1800 W. It carries a 2 year warranty, against 1 year on the Performance Optimized lines.

Threaded inserts pressed into the baffle on the published 14.780 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 26 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 NVX VCW15v3 at 51 percent of its usable travel at 1800 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, 2.85 cubic feet vented at 32.5 Hz, against the 2.00 cu ft sealed wedge we build for this driver (PO 15-S W VCW), so you can judge it yourself.

It is a vertical slot beside the woofer, the full height of the cavity, 2.25 inches wide and 37.1 square inches. It runs 8.38 inches to the back wall and turns once along it for 9.90 inches; the fold costs about 1.5 Hz and the port is cut for it. The channel runs at 22.0 metres per second at 1800 W, 50 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.

65 lb, 36.00" W x 18.00" H x 14.38" D external. Every Professional cabinet is priced the same way, by its size: this one is 5.39 cubic feet outside. Delivery to the 48 states is inside the price; it ships as a 65 lb parcel and checkout adds nothing. Do not add polyfill; it ships dry on purpose.

No. This is an enclosure only, cut for the NVX VCW15v3 specifically: the 14.125 inch cutout, the 8.190 inch mounting depth allowance and the 2.85 cubic foot alignment all come from NVX's published parameters. It fits both coil versions (D2 and D4), and the cabinet was checked against both. Bring your own driver.