Professional Series · Datasheet
Professional Series Ported 15" Enclosure Memphis Audio MOJO1512 · Single 15" Ported enclosure
- Net volume
- 2.30 Cubic Feet
- Tuning
- 32.0 Hz
- Max mounting depth
- 9.650 Inches (Memphis Audio Spec)
- Cutout
- 14.050 Inches (Memphis Audio Spec)
- External dimensions
- 36.00 Inches W × 18.00 Inches H × 15.00 Inches D
- Front baffle
- Three 3/4" MDF layers, 2.25" total | Woofer Flush-Mounted In The Outer Layer
- Alignment: 2.30 cu ft net vented at 32.0 Hz. F3 33.0 Hz anechoic, 2.27 dB passband ripple
- Driver: Memphis Audio MOJO1512 (2 ohm setting), 1500 W RMS, 19.6 mm Xmax, 30.00 Hz Fs
- Build: Front-firing standard box, 2.25" three-layer baffle with the woofer flush-mounted in the outer layer, Memphis Audio logo acrylic, dado joinery, 41.2 sq in front slot port beside the woofer with one bend along the back wall, port and excursion gated at 1800 W
- Cabinet: 36.00" W x 18.00" H x 15.00" D, 69 lb, threaded insert kit included
Spec of record
Technical specifications
| Series | Proline X Professional |
|---|---|
| Driver-Specific Fitment | Memphis Audio MOJO1512 2 Ohm (SVC) |
| Enclosure Type | Ported | Front-Firing Standard Box |
| External Width | 36.00 Inches |
| External Height | 18.00 Inches |
| External Depth | 15.00 Inches |
| Internal Volume (Gross) | 3.95 Cubic Feet |
| Internal Volume (Net After Displacement) | 2.30 Cubic Feet |
| Port Type | Vertical Slot Beside The Woofer | Front Exit | One 90 Degree Bend Along The Back Wall |
| Port Geometry | 2.50 x 16.50 Inches, 41.2 Square Inches, 36.47 Inches Of Path |
| Port Area | 41.2 Square Inches |
| Port Tuning (Fb) | 32.0 Hz |
| Port Mouth | 1/2 In Roundover On All Four Edges, 61.2 Square Inches At The Face |
| Port Air Velocity | 19.7 m/s In The Channel, 13.2 m/s At The Mouth, At 1800 W (17.0 m/s Chuff Threshold) |
| Design Power Basis | 1800 W RMS (1.2 x The Driver Rating) For Port Velocity And Excursion |
| Predicted F3 | 33.0 Hz (Anechoic) |
| Passband Ripple | 2.27 dB (Anechoic) |
| Subsonic Filter | 25 Hz High-Pass, 24 dB/Octave - REQUIRED On A Vented Enclosure |
| Driver Fs | 30.00 Hz |
| Driver Qts | 0.590 |
| Driver Qes / Qms | 0.660 / 6.390 |
| Driver Vas | 80.873 Liters / 2.856 Cubic Feet |
| Driver Sd | 876.1 Square Centimeters |
| Driver Mms | 387.00 g |
| Driver BL | 15.51 |
| Driver Re | 2.0 Ohm |
| Driver Xmax | 20mm (One-Way) |
| Driver Displacement | 0.56 Cubic Feet (Published by Memphis Audio) |
| Driver Sensitivity | 86.8 dB |
| Driver Power Handling | 1500 Watts RMS |
| Driver Overall Diameter | 15.750 Inches (Memphis Audio Spec) |
| Mounting Depth Required | 9.650 Inches (Memphis Audio Spec) |
| Cutout Diameter | 14.050 Inches (Memphis Audio Spec) |
| Flush Mount Recess | 16.750 Inches In The Outer Layer |
| Material | Langboard Elite 3/4" MDF |
| Construction | ShopSabre CNC / Two Windowed Braces Front To Back Either Side Of The Woofer |
| Joinery | Dado Joinery (CNC-Cut), Flat Panels |
| Front Baffle Construction | Three 3/4" MDF layers, 2.25" total | Woofer Flush-Mounted In The Outer Layer |
| Baffle Layers | 3 |
| Acrylic | Glossy Black Memphis Audio Logo Insert, Outer Layer, Standard |
| Mounting Hardware | Threaded Insert Kit Included: 8-12 Inserts, Drill Bit, 2.5 In Allen-Head Screws, Allen Key, Gasket Tape |
| Voice Coil Configuration | SVC |
| Terminal Cup | Proline X ABS/Carbon Fiber Composite | Back Panel, Terminal-Cup Side | 12g OFC Pre-Wired |
| Damping | None - Ships Dry. Polyfill Detunes A Ported Enclosure |
| Recommended Power | 1050-1500 Watts RMS (Memphis Audio Rated: 1500W RMS) |
| Carpet Finish | Plush Black |
| Shipping Weight | 76 lb |
| Shipping | UPS Ground Parcel, Included In The 48 States |
| Bundle Options | Enclosure Only (Bring Your Own Memphis Audio MOJO1512) |
| Warranty | 2-Year Limited (Enclosure) |
| Manufactured | Tullahoma, Tennessee, USA |
Modelled response
Performance in this enclosure
01Is this driver right for a ported box?
Efficiency bandwidth product places the motor before anything else is decided.
02What the box does to it
2.30 cu ft net against a 80.9 L Vas, vented at 32.0 Hz.
03Ported vs Sealed
No sealed comparison is shown for this driver.
04The watts that reach Xmax (in this enclosure)
Travel scales with the square root of power, so there is one wattage that puts the cone exactly on Memphis's published 19.6 mm. The two traces are the same cabinet with the subsonic filter switched on and switched off.
From the shop floor
Installer's take
I built this box for the MOJO1512 on the full Professional chassis: three layers of baffle with the frame flush in the outer one, and a 2.50 inch slot beside the woofer that turns once along the back wall.
The FLEX jumper does not change the box. I solved it at the 2 ohm setting and checked it at 1 ohm, and both clear every gate at 1800 watts; the 1 ohm setting just runs a little peakier through the passband.
On the 2 ohm setting the driver is a 2 ohm load, on the 1 ohm setting a 1 ohm load. Only use 1 ohm on an amplifier rated for it.
Memphis Audio publishes no mounting hole locations for the MOJO1512, so the inserts are not in the baffle when the box arrives. The insert kit is in the box: set the inserts where the woofer's own holes fall, with the drill bit and the 2.5 inch allen-head screws in the kit, and lay the gasket tape before the woofer goes down.
It ships dry. Do not add polyfill to a ported box. Set your subsonic filter at 25 Hz.
Before you order
Questions
Why is this enclosure tuned to 32.0 Hz?
Memphis's MOJO sheet gives the MOJO1512 Fs 30 Hz, Vas 2.86 cubic feet and 387 grams of moving mass, and those agree with its own compliance and cone area to within a few percent. The FLEX jumper changes only the electrical side, Qts 0.59 at the 2 ohm setting and 0.69 at 1 ohm, so the cabinet is solved at 2 ohms and checked at 1. At 2 ohms F3 is 33.0 Hz with 2.27 dB of passband ripple, at 1 ohm 33.1 Hz with 3.20 dB, and with cabin gain the curve holds within 0.87 dB from 25 to 60 Hz. At 1800 watts, 1.2 times the rating, the cone uses 10.9 of its 19.6 millimetres and the port mouth runs 13.2 metres per second, under the 17 where a slot starts to chuff. 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.
Why is this a Professional build and not a Performance Optimized box?
The Professional line is the full-size, front-firing option rather than a trunk wedge. 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.
Threaded inserts or a kit?
Memphis Audio does not publish the mounting hole locations for the MOJO1512, 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.
Do I need a subsonic filter?
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 MOJO1512 at 56 percent of its usable travel at 1800 W.
Would a sealed box be better for me?
Not one we can show you. We do not build a sealed enclosure for the Memphis Audio MOJO1512, and the sealed volume Memphis prints for it appears word for word on three different Memphis 15 inch sheets, 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 25 Hz subsonic filter takes over; around 32.0 Hz the vent carries the load and cone travel drops to its minimum, which no sealed alignment can do.
How does the front port work?
It is a vertical slot beside the woofer, the full height of the cavity, 2.50 inches wide and 41.2 square inches. It runs 8.75 inches to the back wall and turns once along it for 21.47 inches; the fold costs about 1.5 Hz and the port is cut for it. The channel runs at 19.7 metres per second at 1800 W, 44 percent of its turbulence limit, and the mouth edges carry a 1/2 inch roundover so the air leaves the face at 13.2 metres per second against the 17 metres per second threshold where a slot starts to chuff.
What does the price cover, and how does it ship?
69 lb, 36.00" W x 18.00" H x 15.00" 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 5.62 cubic feet outside. Do not add polyfill; it ships dry on purpose.
Is the MOJO1512 included?
No. This is an enclosure only, cut for the Memphis Audio MOJO1512 specifically: the 14.050 inch cutout, the 9.650 inch mounting depth allowance and the 2.30 cubic foot alignment all come from Memphis Audio's published parameters. It is one driver with a FLEX impedance jumper: the alignment published here is the 2 ohm setting, and the cabinet passes every gate at 1 ohm too. It is not for the 2025 MJ1512, which uses a 13.81 inch cutout. Bring your own driver.
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