Orion XTR124D / XTR12D4 (XTR 12" DVC 4ohm)

12″ subwoofer · dual 4 Ω · 600 W RMS

Fs 28.3 HzQts 0.52Vas 2.62 ft³Xmax 0.48″

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 volume1.80 ft³ (51 L)
Qtc0.82
Fc44 Hz
F3 (−3 dB, no cabin gain)41 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 9 1/16″
Open sealed box in designer

Ported

Net volume3.07 ft³ (87 L)
Tuning (Fb)31 Hz
Portslot 2 3/8 × 14 5/16″, 25 13/16″ long
Port velocity at 600 W62 ft/s
F3 (−3 dB, no cabin gain)28 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 16 5/8″
Open ported box in designer
203040506080100150200667278849096HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs28.3 Hz
Qts0.52
Qes0.545
Qms11.5
Vas2.62 ft³
Re (one coil)3.69 Ω
Sd79.2 in²
Xmax0.48″
Vd37.7 in³ calc.
Mms158 g calc.
BL13.8 T·m calc.
EBP52 — sealed or ported calc.
Sensitivity, 1 W / 1 m86.9 dB calc.

General

Size12″
Voice coilsdual 4 Ω
RMS power600 W

Mounting dimensions

Ø12 9/16″cutout Ø10 7/8″mounting depth 6 1/4″magnet Ø≈ 7 1/16″
Cutout diameter10 7/8″
Mounting depth6 1/4″
Overall diameter12 9/16″

“≈” 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