Professional Series Ported 15" Enclosure | Kicker CompQ 15

Kicker publishes two ported boxes for the CompQ 15: a Vented Minimum of 3.0 cubic feet including the woofer, with a 2.5 by 16.25 inch port 19.5 inches long, and a Vented Maximum of 6.0. This is the Minimum, built to the same 2.75 cubic feet of net air and the tuning Kicker's port gives it, about 39 Hz. Our slot is 2.75 inches wide where Kicker draws 2.5, the narrowest slot the Professional chassis cuts, and is lengthened to hold the same tuning. The slot is gated at 1440 W, 1.2 times Kicker's 1200 W top rating: the channel runs 24.3 m/s and the mouth 16.8, and the cone peaks at 8.2 of its 23.7 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 CompQ 15 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 1440 W. It carries a 2 year warranty, against 1 year on the Performance Optimized lines.

Kicker does not publish the mounting hole locations for the CompQ 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 one kit.

Yes, at 31 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 Kicker CompQ 15 at 34 percent of its usable travel at 1440 W.

Not one we can show you. We do not build a sealed enclosure for the Kicker CompQ 15 and Kicker publish no sealed volume for it, so the Performance Graphs tab carries no ported-versus-sealed chart: the only sealed box left to plot would be this cabinet stuffed and sealed, which nobody would build, and a comparison against it would tell you nothing you could buy. What a vented box gives up is the region below tuning, where the cone unloads and the 31 Hz subsonic filter takes over; around 39.0 Hz the vent carries the load and cone travel drops to its minimum, which no sealed alignment can do.

It is a vertical slot beside the woofer, the full height of the cavity, 2.75 inches wide and 45.4 square inches. It runs 9.00 inches to the back wall and turns once along it for 4.86 inches; the fold costs about 1.5 Hz and the port is cut for it. The channel runs at 24.3 metres per second at 1440 W, 43 percent of its turbulence limit, and the mouth edges carry a 1/2 inch roundover so the air leaves the face at 16.8 metres per second against the 17 metres per second threshold where a slot starts to chuff.

61 lb, 33.00" W x 18.00" H x 15.50" D external. This cabinet is 5.33 cubic feet outside. Delivery to the 48 states is inside the price; it ships as a 61 lb parcel and checkout adds nothing. The Performance Optimized 15 inch ported wedge is $499.99. The $67 difference is the larger box and the port this driver needs to run at its rating. Do not add polyfill; it ships dry on purpose.

No. This is an enclosure only, cut for the Kicker CompQ 15 specifically: the 13.875 inch cutout, the 8.938 inch mounting depth allowance and the 2.76 cubic foot alignment all come from Kicker's published parameters. It fits both coil versions (D2 and D4), and the cabinet was checked against both. Bring your own driver.