Massive Audio H154X

15″ subwoofer · dual 4 Ω · 2,000 W RMS

Fs 37.3 HzQts 0.48Vas 2.14 ft³Xmax 0.81″

Recommended box

For a sedan, one sub, 2,000 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 volume1.27 ft³ (36 L)
Qtc0.78
Fc61 Hz
F3 (−3 dB, no cabin gain)59 Hz
Example box (outside)16 15/16″ × 16 15/16″ × 11 13/16″
Open sealed box in designer

Ported

Net volume3.85 ft³ (109 L)
Tuning (Fb)33 Hz
Portslot 4 5/16 × 16 5/16″, 38 1/16″ long
Port velocity at 2,000 W63 ft/s
F3 (−3 dB, no cabin gain)30 Hz
Example box (outside)31 1/2″ × 17 11/16″ × 21 3/4″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs37.3 Hz
Qts0.48
Qes0.615
Qms2.15
Vas2.14 ft³
Re (one coil)3.2 Ω
Sd129.3 in²
Xmax0.81″
Vd104.3 in³ calc.
Mms296 g calc.
BL19 T·m calc.
EBP61 — sealed or ported calc.
Sensitivity, 1 W / 1 m89.1 dB calc.

General

Size15″
Voice coilsdual 4 Ω
RMS power2,000 W

Mounting dimensions

Ø15 1/2″cutout Ø13 11/16″mounting depth 9 7/16″magnet Ø≈ 8 7/8″
Cutout diameter13 11/16″
Mounting depth9 7/16″
Overall diameter15 1/2″

“≈” 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 Massive Audio 15″ models