Hifonics ZXS15D2

15″ subwoofer · dual 2 Ω · 600 W RMS

Fs 26.8 HzQts 0.54Vas 4.26 ft³Xmax 0.55″

Recommended box

For a sedan, one sub, 600 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 volume2.93 ft³ (83 L)
Qtc0.84
Fc42 Hz
F3 (−3 dB, no cabin gain)38 Hz
Example box (outside)31 1/2″ × 17 11/16″ × 12 3/8″
Open sealed box in designer

Ported

Net volume4.98 ft³ (141 L)
Tuning (Fb)30 Hz
Portslot 2 3/8 × 16 5/16″, 17 13/16″ long
Port velocity at 600 W64 ft/s
F3 (−3 dB, no cabin gain)27 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

Fs26.8 Hz
Qts0.54
Qes0.64
Qms3.39
Vas4.26 ft³
Re (one coil)2 Ω
Sd128.5 in²
Xmax0.55″
Vd70.8 in³ calc.
Mms285 g calc.
BL12.2 T·m calc.
EBP42 — suits sealed calc.
Sensitivity, 1 W / 1 m87.6 dB calc.

General

Size15″
Voice coilsdual 2 Ω
RMS power600 W

Mounting dimensions

Ø15 1/4″cutout Ø13 7/8″mounting depth 7 3/16″magnet Ø≈ 9″
Cutout diameter13 7/8″
Mounting depth7 3/16″
Overall diameter15 1/4″

“≈” 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 Hifonics 15″ models