Performance Optimized Wedge Sealed Dual 15" Enclosure Memphis Audio MOJO Pro 15 · Dual 15" Sealed enclosure

Yes. Both coil versions of the MOJO Pro 15 share the 13.84 inch cutout, the 15.90 inch frame and the 7.88 inch mounting depth, and the motor clears the raked back panel by 1.33 inches at the tightest point. Buy a matched pair, same model and same coil. The alignment on this page is computed from the MJP1544's published figures; the MJP1522 column on Memphis's sheet lists a Vas its shared cone and suspension cannot produce, so we publish no Qtc for it.

Memphis's 2024 MOJO Pro sheet prints 3.0 cubic feet gross for a sealed pair, and this cabinet holds 3.00: 1.50 per chamber, 1.21 net after each driver's 0.29 cubic feet of displacement. With the MJP1544's Qts of 0.650 that gives Qtc 1.202, fc 57.7 Hz and F3 42.4 Hz, a 2.4 dB peak near 71 Hz. It is a compact, punchy alignment; 2.50 cubic feet per driver would bring Qtc to 0.96 in a box twice the size.

Memphis has published two MOJO Pro sheets. The 2022 sheet, still linked from the MJP1544 product page, prints 2.6 cubic feet gross for one driver sealed and 5.0 for a pair, and that same enclosure block appears word for word on Memphis's M7 and MOJO 15 sheets, which are different drivers. The 2024 MOJO Pro sheet revises the sealed figures to 1.5 and 3.0, and this cabinet is built to the revision.

Plan on 525 to 750 watts RMS per driver, 1050 to 1500 for the pair. The small chamber holds the cone back hard, so reaching the 0.51 inch Xmax would take 949 watts per driver: heat is the limit here, not travel. Two MJP1544s give 4 ohms with each driver in series and the pair in parallel, or 1 ohm with all four coils in parallel; two MJP1522s give 2 ohms or 0.5 ohm. Many amplifiers are not stable at 1 ohm, so wire MJP1544s for 4 ohms unless the amplifier is rated for 1.

The back panel is raked 20 degrees to lie against a factory rear seat back, so the cabinet runs 15.87 inches deep at the floor and 9.32 at the top instead of standing square in the trunk. The 18 inch baffle stays vertical and both woofers fire rearward into the trunk cavity, which loads the trunk and reaches the cabin through the seat and deck.

A full 0.75 inch divider gives each driver its own sealed 1.50 cubic feet gross, so one cone's motion never changes the air load the other driver sees. Each chamber has a side-mounted Proline X terminal cup pre-wired with 12 gauge OFC to its own driver, so there is no cross-chamber wiring and the pair can run a monoblock per driver or share one amplifier.

Anechoic F3 is 42.4 Hz per driver, falling at 12 dB per octave below it, and cabin gain in most vehicles adds real output under 40 Hz. A 25 Hz subsonic filter barely changes excursion here, 949 to 956 watts at Xmax, because the small sealed box already controls the cone below 57.7 Hz. Set one to keep road rumble out of the cones.

No. This is an enclosure only: the cabinet in plush black carpet, two pre-wired terminal cups, a light polyfill lining that does not change the acoustic volume, and a threaded insert kit for each driver. The threaded insert kit ships in the box for each driver position: inserts, machine screws, a screw key and the drill bit. Set the woofer in its cutout with the supplied screws so the driver locates its own pattern, lift it out, drill those holes to 13/64 inch and press the hurricane nuts in from the back of the baffle.