Hifonics BRZ12SQD4 (Brutus SQ 12" DVC 4ohm)

12″ subwoofer · dual 4 Ω · 600 W RMS

Fs 25 HzQts 0.57Vas 3.43 ft³Xmax 0.59″

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 volume2.40 ft³ (68 L)
Qtc0.90
Fc39 Hz
F3 (−3 dB, no cabin gain)34 Hz
Example box (outside)31 1/2″ × 18 1/8″ × 10 5/16″
Open sealed box in designer

Ported

Net volume4.06 ft³ (115 L)
Tuning (Fb)28 Hz
Portslot 2 3/16 × 16 11/16″, 25 3/8″ long
Port velocity at 600 W61 ft/s
F3 (−3 dB, no cabin gain)25 Hz
Example box (outside)31 1/2″ × 18 1/8″ × 18 5/16″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs25 Hz
Qts0.57
Qes0.649
Qms5.03
Vas3.43 ft³
Re (one coil)3.87 Ω
Sd104.8 in²
Xmax0.59″
Vd61.9 in³ calc.
Mms270 g calc.
BL15.9 T·m calc.
EBP39 — suits sealed calc.
Sensitivity, 1 W / 1 m85.7 dB calc.

General

Size12″
Voice coilsdual 4 Ω
RMS power600 W

Mounting dimensions

≈ 15 3/16″ × ≈ 15 3/16″cutout ≈ 14″mounting depth ≈ 7 1/16″magnet Ø≈ 9 1/16″
Cutout (square, side)≈ 14″
Mounting depth≈ 7 1/16″

“≈” 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 Hifonics 12″ models