Memphis Car Audio PRX1044 (Power Reference 10" DVC 4ohm)

10″ subwoofer · dual 4 Ω · 250 W RMS

Fs 38 HzQts 0.61Vas 0.73 ft³Xmax 0.55″

Recommended box

For a sedan, one sub, 250 W. It’s the same math as the designer’s step-by-step mode, where you can fit the box to your space, vehicle and amp and get plans, a cut sheet and DXF.

Sealed

Net volume0.99 ft³ (28 L)
Qtc0.80
Fc50 Hz
F3 (−3 dB, no cabin gain)47 Hz
Example box (outside)12 5/8″ × 12 5/8″ × 15 15/16″
Open sealed box in designer

Ported

Net volume1.84 ft³ (52 L)
Tuning (Fb)32 Hz
Portslot 1 9/16 × 14 5/16″, 28 3/16″ long
Port velocity at 250 W50 ft/s
F3 (−3 dB, no cabin gain)28 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 11 1/16″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs38 Hz
Qts0.61
Qes0.69
Qms4.97
Vas0.73 ft³
Re (one coil)≈ 3.4 Ω
Sd47.6 in²
Xmax0.55″
Vd26.3 in³ calc.
Mms114 g calc.
BL11.6 T·m calc.
EBP55 — sealed or ported calc.
Sensitivity, 1 W / 1 m84.1 dB calc.

General

Size10″
Voice coilsdual 4 Ω
RMS power250 W

Mounting dimensions

10 9/16″ × 10 9/16″cutout 9 1/4″mounting depth 5 3/16″magnet Ø6 7/16″
Cutout (square, side)9 1/4″
Mounting depth5 3/16″
Overall diameter10 9/16″
Magnet diameter6 7/16″

“≈” means the value isn’t in the spec sheet and a typical value for the size is used; “calc.” means it’s calculated from the published parameters. Check the manufacturer’s spec sheet before you build.

Data sources

Other Memphis Car Audio 10″ models