Massive Audio GTS12

12″ subwoofer · dual 4 Ω · 370 W RMS

Fs 31.7 HzQts 0.59Vas 1.53 ft³Xmax 0.35″

Recommended box

For a sedan, one sub, 370 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 volume1.66 ft³ (47 L)
Qtc0.81
Fc44 Hz
F3 (−3 dB, no cabin gain)41 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 8 1/2″
Open sealed box in designer

Ported

Net volume2.83 ft³ (80 L)
Tuning (Fb)30 Hz
Portslot 1 3/4 × 14 5/16″, 22 1/2″ long
Port velocity at 370 W59 ft/s
F3 (−3 dB, no cabin gain)26 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 14 15/16″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs31.7 Hz
Qts0.59
Qes0.754
Qms2.63
Vas1.53 ft³
Re (one coil)3.4 Ω
Sd72.9 in²
Xmax0.35″
Vd25.8 in³ calc.
Mms182 g calc.
BL12.8 T·m calc.
EBP42 — suits sealed calc.
Sensitivity, 1 W / 1 m84.6 dB calc.

General

Size12″
Voice coilsdual 4 Ω
RMS power370 W

Mounting dimensions

Ø12 5/16″cutout Ø10 9/16″mounting depth 3 1/4″magnet Ø≈ 6 7/8″
Cutout diameter10 9/16″
Mounting depth3 1/4″
Overall diameter12 5/16″

“≈” 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 Massive Audio 12″ models