Professional Series Ported Dual 15" Enclosure | Memphis Audio MOJO Pro 15

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 57.8 square inches of area at 31.5 Hz, and the design power for the velocity and excursion checks is 1800 W for the pair. Passband ripple holds at 2.42 dB across the tuning, with F3 at 34.5 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.

Every driver is tried in the Performance Optimized ported wedge and down-fire before this chassis, and both of those hold one driver. A pair of MOJO Pro 15s sharing one vented chamber needs the Professional envelope, and this box has the width, depth and port to carry both. An under-ported box does not fail quietly. Air speed at the mouth rises with power; past the chuff line the flow turns turbulent and the port is audible on every note. The turbulence also chokes the port, so the box behaves as if it were tuned higher than it is, loses output near tuning, and lets the cone travel further below tuning than the design allows. This chassis is a full-size front-firing box on a 2.25 inch baffle built from three 3/4 inch layers with the woofer flush-mounted in the outer layer, a Memphis Audio logo acrylic, and a port and excursion budget checked at 1800 W. It carries a 2 year warranty, against 1 year on the Performance Optimized lines.

Memphis Audio does not publish the mounting hole locations for the MOJO Pro 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 25 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 Memphis Audio MOJO Pro 15 at 64 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, 4.66 cubic feet vented at 31.5 Hz, against the 1.21 cu ft sealed wedge we build for this driver (PO 15-S W Mojo Pro) per driver, 2.42 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, 3.50 inches wide and 57.8 square inches. It runs 10.75 inches to the back wall and turns once along it for 5.13 inches; the fold costs about 1.5 Hz and the port is cut for it. The channel runs at 18.7 metres per second at 1800 W, 40 percent of its turbulence limit, and the mouth edges carry a 1/2 inch roundover so the air leaves the face at 13.7 metres per second against the 17 metres per second threshold where a slot starts to chuff.

74 lb, 44.00" W x 18.00" H x 18.00" D external. It ships as a UPS parcel; the price includes shipping in the 48 states. Every Professional cabinet is priced the same way, by its size: this one is 8.25 cubic feet outside. Do not add polyfill; it ships dry on purpose.

No. This is an enclosure only, cut for the Memphis Audio MOJO Pro 15 specifically: the 13.840 inch cutout, the 7.880 inch mounting depth allowance and the 4.66 cubic foot alignment all come from Memphis Audio's published parameters. It fits both coil versions; the alignment published here is the D4. Bring your own driver.