Orion XTR122D / XTR12D2 (XTR 12" DVC 2ohm)

12″ subwoofer · dual 2 Ω · 600 W RMS

27.1 HzFs, resonance
0.53Qts
2.54 ft³Vas
0.48″Xmax
600 WRMS

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

smaller, tighter
1.80 ft³ (51 L)
Net volume
Qtc0.82
Fc42 Hz
F3 (−3 dB, no cabin gain)39 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 9 1/16″
Open sealed box in designer

Ported

deeper, louder
3.07 ft³ (87 L)
Net volume
Tuning (Fb)29 Hz
Portslot 2 3/8 × 14 5/16″, 30 3/16″ long
Port velocity at 600 W61 ft/s
F3 (−3 dB, no cabin gain)26 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 17 1/8″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs27.1 Hz
Qts0.53
Qes0.549
Qms12.85
Vas2.54 ft³
Re (one coil)1.91 Ω
Sd79.2 in²
Xmax0.48″
Vd37.7 in³ calc.
Mms177 g calc.
BL10.3 T·m calc.
EBP49 — suits sealed calc.
Sensitivity, 1 W / 1 m86.2 dB calc.

General

Size12″
Voice coilsdual 2 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