Orion XTRPRO124 (XTR PRO 12" DVC 4ohm)

12″ subwoofer · dual 4 Ω · 1,250 W RMS

Fs 34.9 HzQts 0.42Vas 1.35 ft³Xmax 0.53″

Recommended box

For a sedan, one sub, 1,250 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 volume1.06 ft³ (30 L)
Qtc0.63
Fc53 Hz
F3 (−3 dB, no cabin gain)63 Hz
Example box (outside)16 9/16″ × 16 9/16″ × 10 1/4″
Open sealed box in designer

Ported

Net volume1.62 ft³ (46 L)
Tuning (Fb)35 Hz
Portround port Ø2 1/2″, 4 7/8″ long
Port velocity at 1,250 W497 ft/s
F3 (−3 dB, no cabin gain)33 Hz
Example box (outside)22 15/16″ × 17 5/16″ × 10 1/4″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs34.9 Hz
Qts0.42
Qes0.433
Qms11.34
Vas1.35 ft³
Re (one coil)3.4 Ω
Sd83.6 in²
Xmax0.53″
Vd44.1 in³ calc.
Mms225 g calc.
BL19.7 T·m calc.
EBP81 — sealed or ported calc.
Sensitivity, 1 W / 1 m87.7 dB calc.

General

Size12″
Voice coilsdual 4 Ω
RMS power1,250 W

Mounting dimensions

Ø≈ 14 1/2″cutout Ø13 3/8″mounting depth 7 11/16″magnet Ø≈ 8 11/16″
Cutout diameter13 3/8″
Mounting depth7 11/16″

“≈” 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 Orion 12″ models