MTX Audio TX612

12″ subwoofer · 2 Ω · 800 W RMS

Fs 26.7 HzQts 0.41Vas 1.56 ft³Xmax 0.55″

Recommended box

For a sedan, one sub, 800 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 volume0.71 ft³ (20 L)
Qtc0.73
Fc48 Hz
F3 (−3 dB, no cabin gain)49 Hz
Example box (outside)14 3/16″ × 14 3/16″ × 10 1/16″
Open sealed box in designer

Ported

Net volume1.80 ft³ (51 L)
Tuning (Fb)28 Hz
Portslot 1 3/4 × 14 5/16″, 43 7/8″ long
Port velocity at 800 W73 ft/s
F3 (−3 dB, no cabin gain)26 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 12 1/2″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs26.7 Hz
Qts0.41
Qes0.44
Qms5.68
Vas1.56 ft³
Re2 Ω
Sd77.6 in²
Xmax0.55″
Vd42.8 in³ calc.
Mms285 g calc.
BL14.7 T·m calc.
EBP61 — sealed or ported calc.
Sensitivity, 1 W / 1 m84.8 dB calc.

General

Size12″
Voice coils2 Ω
RMS power800 W

Mounting dimensions

Ø12 5/8″cutout Ø11″mounting depth 5 9/16″magnet Ø≈ 7 3/16″
Cutout diameter11″
Mounting depth5 9/16″
Overall diameter12 5/8″

“≈” 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 12″ models