MTX Audio T9515-04

15″ subwoofer · 4 Ω · 1,000 W RMS

Fs 30.6 HzQts 0.57Vas 2.66 ft³Xmax 1.00″

Recommended box

For a sedan, one sub, 1,000 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 volume2.83 ft³ (80 L)
Qtc0.80
Fc43 Hz
F3 (−3 dB, no cabin gain)40 Hz
Example box (outside)16 15/16″ × 16 15/16″ × 23″
Open sealed box in designer

Ported

Net volume5.19 ft³ (147 L)
Tuning (Fb)28 Hz
Portslot 3 3/8 × 16 5/16″, 29 3/4″ long
Port velocity at 1,000 W63 ft/s
F3 (−3 dB, no cabin gain)25 Hz
Example box (outside)31 1/2″ × 17 11/16″ × 24 1/8″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs30.6 Hz
Qts0.57
Qes0.68
Qms3.68
Vas2.66 ft³
Re3.66 Ω
Sd134.4 in²
Xmax1.00″
Vd134.9 in³ calc.
Mms383 g calc.
BL19.9 T·m calc.
EBP45 — suits sealed calc.
Sensitivity, 1 W / 1 m87 dB calc.

General

Size15″
Voice coils4 Ω
RMS power1,000 W

Mounting dimensions

Ø15 3/4″cutout Ø13 7/8″mounting depth 10 3/4″magnet Ø≈ 9″
Cutout diameter13 7/8″
Mounting depth10 3/4″
Overall diameter15 3/4″

“≈” 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 MTX Audio 15″ models