Proline X PO 12-S W M12SS sealed wedge, front baffle with gloss black insert and pre-wired leads, 29.50 by 15 inches.Proline X PO 12-S W M12SS sealed wedge, side profile with recessed terminal cup, 16.12 inch base, 15 inches tall.

Performance Optimized · Datasheet

Performance Optimized Wedge Sealed 12" Enclosure | Deaf Bonce Machete M12 Super Sport Single 12" Sealed enclosure

Net volume
2.10 cu ft
Max mounting depth
7.33 in available, 6.83 in required by the driver
Cutout
11.22 in
External dimensions
29.50 in W × 15 in at the seat face H × 16.12 in at the base D
Front baffle
1.5 in, double baffle
Buy at Audio Intensity
  • Best For: Deaf Bonce Machete M12 Super Sport Trunk-Fit Builds
  • Net Volume: 2.10 cu ft (2.19 cu ft Gross)
  • Alignment: Qtc 0.707 to 0.815, fc 48.4 to 50.2 Hz, F3 44.4 to 48.4 Hz
  • Driver Match: Deaf Bonce Machete M12 Super Sport (M12D1 Super Sport or M12D2 Super Sport)
  • Impedance: D1 2 ohms in series or 0.5 ohm in parallel; D2 4 ohms in series or 1 ohm in parallel
  • Construction: Rear-Firing Wedge | V-Groove/Dado | Double 1.5" Baffle | Threaded Inserts

Technical specifications

SpecificationValue
SeriesProline X Performance Optimized Wedge
Compatible DriverDeaf Bonce Machete M12 Super Sport, quantity 1. Direct fit
ConfigurationSingle 12 inch, single chamber sealed wedge
Mounting PositionTrunk or cargo area, tall face against the rear seat back
Firing DirectionRearward into the trunk. Not a down fire design, no feet included
External Width29.50 in
External Height15 in at the seat face
External Depth16.12 in at the base, tapering to 10.66 in at the top
Internal Volume, Gross2.19 cu ft
Internal Volume, Net Acoustic2.10 cu ft
AlignmentQtc 0.707 to 0.815, fc 48.4 to 50.2 Hz, F3 44.4 to 48.4 Hz anechoic
Driver Cutout11.22 in
Driver Mounting Depth7.33 in available, 6.83 in required by the driver
Frame Outer Diameter12.72 in, bounded from the cutout (not published)
Driver Displacement (estimated)0.08 cu ft, not published by Deaf Bonce
Power Handling1300 watts RMS
ImpedanceD1 2 ohms in series or 0.5 ohm in parallel; D2 4 ohms in series or 1 ohm in parallel
Xmax17 mm one way
Sensitivity85 / 86 dB as published by Deaf Bonce
MaterialLangboard Elite MDF
ConstructionCNC cut, V-groove and dado joinery
Panel Thickness0.75 in
Front Baffle1.5 in, double baffle
Internal BracingInternal brace
Driver MountingThreaded inserts at every mounting location, stainless machine screws included
Terminal CupsOne Proline X ABS and carbon fiber composite, side mounted, pre wired 12 gauge OFC
DampingLight polyfill wall lining, does not alter acoustic volume
CarpetPlush black
Weight46.5 lb
Warranty1 Year Limited
Built InTullahoma, Tennessee

Installer's take

2.10 cubic feet net. That is the Butterworth volume for the M12D1 Super Sport coil, computed from Deaf Bonce's published Fs, Qts and Vas. Deaf Bonce publish no sealed recommendation for the M12 Super Sport (their manual recommends a bass-reflex box), so this alignment is ours, chosen for damping and transient control rather than peak output. Half power lands at 44.4 to 48.4 Hz anechoic, before any cabin gain.

Two coil versions, one cabinet. In this box the M12D1 Super Sport lands at Qtc 0.707, maximally flat, the reference musical alignment, and the M12D2 Super Sport at Qtc 0.815. System resonance sits at 48.4 to 50.2 Hz.

Deaf Bonce print no frame diameter for the M12 Super Sport, so the recess is bounded at the 11.22 in cutout plus 1.5 in, the widest flange overhang across the Machete drawings, and cannot land undersize. Deaf Bonce do not publish driver displacement; the 0.08 cu ft carried here is an estimate for a 12 inch motor, and only the gross figure depends on it.

Measure the base depth. This cabinet is 16.12 inches deep at the trunk floor, 10.66 at the top, and 29.50 wide. It is deeper at the base than it is tall, because the M12 Super Sport carries a 6.83 in motor and the cabinet has to clear it. Width sits at the 29.5 in single-driver cap and the depth absorbs the rest.

Questions

Will this enclosure fit both the M12D1 Super Sport and the M12D2 Super Sport?

Yes. The coil versions share a frame, the same 11.22 in cutout and the same 6.83 in mounting depth, so the cabinet fits either. They differ electrically, and nothing about the enclosure changes.

Why 2.10 cubic feet net?

2.10 cubic feet net. That is the Butterworth volume for the M12D1 Super Sport coil, computed from Deaf Bonce's published Fs, Qts and Vas. Deaf Bonce publish no sealed recommendation for the M12 Super Sport (their manual recommends a bass-reflex box), so this alignment is ours, chosen for damping and transient control rather than peak output. In this box the M12D1 Super Sport lands at Qtc 0.707, maximally flat, the reference musical alignment, and the M12D2 Super Sport at Qtc 0.815. System resonance sits at 48.4 to 50.2 Hz. The box is 2.19 cu ft gross before the driver's displacement. Deaf Bonce do not publish driver displacement; the 0.08 cu ft carried here is an estimate for a 12 inch motor, and only the gross figure depends on it.

What amplifier power should I run, and what impedance?

Deaf Bonce rate the M12 Super Sport at 1300 watts RMS. The M12D1 Super Sport carries two 1 ohm coils: 2 ohms in series or 0.5 ohm in parallel. The M12D2 Super Sport carries two 2 ohm coils: 4 ohms in series or 1 ohm in parallel. Run the coils in series unless the amplifier is rated stable at the parallel load; 0.5 ohm is beyond most amplifiers. Aim for roughly 909 to 1300 watts at the impedance you wire.

How does a wedge enclosure improve the sound in a trunk installation?

The angled seat-side face matches the roughly 20 degree lean of a factory rear seat, so the cabinet sits flat against it instead of leaving a wasted triangle. The vertical trunk-lid-side face carries the driver, firing rearward into the trunk cavity.

Why a rear-firing wedge instead of a plain box?

A rectangular box of this volume wastes the triangle of space a leaning rear seat creates, and firing into the trunk lid rather than at the seat back gives the cabin a smoother path to the passengers. The wedge takes the same air volume and puts it where the car actually has room.

What is the expected low-frequency extension?

Half power lands at 44.4 to 48.4 Hz anechoic, before any cabin gain. Qtc is 0.707 to 0.815. These figures exclude cabin gain, which in most vehicles adds real output below 40 Hz. Deaf Bonce publish the M12 Super Sport's free-air resonance at 39 to 40 Hz.

Do I need to add polyfill or damping?

No. Polyfill is already installed as a light wall lining and the quantity is chosen so it does not change the acoustic volume. Do not add more.

Is the driver included?

No. This is an enclosure only. You receive the cabinet finished in plush black carpet, with threaded inserts at the driver position, stainless machine screws, one side-mounted pre-wired terminal cup and the polyfill lining already installed.

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