Triton Red Cross 12

12″ subwoofer · 4 Ω · 500 W RMS

Fs 29.9 HzQts 0.39Vas 1.59 ft³Xmax 0.51″
The published specs don’t add up:

Recommended box

For a sedan, one sub, 500 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 volume0.53 ft³ (15 L)
Qtc0.78
Fc60 Hz
F3 (−3 dB, no cabin gain)58 Hz
Example box (outside)12 3/16″ × 12 3/16″ × 10 1/4″
Open sealed box in designer

Ported

Net volume1.59 ft³ (45 L)
Tuning (Fb)32 Hz
Portslot 1 9/16 × 14 5/16″, 33 1/8″ long
Port velocity at 500 W64 ft/s
F3 (−3 dB, no cabin gain)31 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 10 7/16″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs29.9 Hz
Qts0.39
Qes0.4
Qms13.49
Vas1.59 ft³
Re4 Ω
Sd58.7 in²
Xmax0.51″
Vd30.1 in³ calc.
Mms128 g calc.
BL15.5 T·m calc.
EBP75 — sealed or ported calc.
Sensitivity, 1 W / 1 m86.8 dB calc.

General

Size12″
Voice coils4 Ω
RMS power500 W

Mounting dimensions

Ø≈ 10 5/16″cutout ≈ Ø9 1/8″mounting depth ≈ 5 1/8″magnet Ø5 1/4″
Cutout diameter≈ 9 1/8″
Mounting depth≈ 5 1/8″
Magnet diameter5 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 Triton 12″ models