Pride M.9 15 (table: Re 0.4, SVC)

15″ subwoofer · 900 W RMS

Fs 31.2 HzQts 0.66Vas 2.43 ft³Xmax 0.67″
The published specs don’t add up:

Recommended box

For a sedan, one sub, 900 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 volume2.72 ft³ (77 L)
Qtc0.91
Fc43 Hz
F3 (−3 dB, no cabin gain)37 Hz
Example box (outside)31 1/2″ × 17 11/16″ × 11 5/8″
Open sealed box in designer

Ported

Net volume4.66 ft³ (132 L)
Tuning (Fb)30 Hz
Portslot 2 15/16 × 16 5/16″, 24 15/16″ long
Port velocity at 900 W65 ft/s
F3 (−3 dB, no cabin gain)26 Hz
Example box (outside)31 1/2″ × 17 11/16″ × 21 5/16″
Open ported box in designer
203040506080100150200667278849096HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs31.2 Hz
Qts0.66
Qes0.75
Qms5.5
Vas2.43 ft³
Re0.4 Ω
Sd120 in²
Xmax0.67″
Vd80.3 in³ calc.
Mms321 g calc.
BL5.8 T·m calc.
EBP42 — suits sealed calc.
Sensitivity, 1 W / 1 m86.4 dB calc.

General

Size15″
Voice coils—
RMS power900 W

Mounting dimensions

Ø15 3/8″cutout Ø13 7/8″mounting depth 7 1/16″magnet Ø6 1/8″
Cutout diameter13 7/8″
Mounting depth7 1/16″
Overall diameter15 3/8″
Magnet diameter6 1/8″

“≈” 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 Pride 15″ models