Orion HCCA122 (HCCA 12" DVC 2ohm)

12″ subwoofer · dual 2 Ω · 2,500 W RMS

Fs 32.3 HzQts 0.46Vas 0.89 ft³Xmax 1.19″

Recommended box

For a sedan, one sub, 2,500 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 volume1.02 ft³ (29 L)
Qtc0.62
Fc44 Hz
F3 (−3 dB, no cabin gain)53 Hz
Example box (outside)14 9/16″ × 14 9/16″ × 12 11/16″
Open sealed box in designer

Ported

Net volume1.66 ft³ (47 L)
Tuning (Fb)29 Hz
Portround port Ø2 1/2″, 7 11/16″ long
Port velocity at 2,500 W670 ft/s
F3 (−3 dB, no cabin gain)26 Hz
Example box (outside)20 3/8″ × 15 3/4″ × 12 13/16″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs32.3 Hz
Qts0.46
Qes0.5
Qms5.08
Vas0.89 ft³
Re (one coil)2 Ω
Sd86.8 in²
Xmax1.19″
Vd103.2 in³ calc.
Mms426 g calc.
BL18.6 T·m calc.
EBP65 — sealed or ported calc.
Sensitivity, 1 W / 1 m84.3 dB calc.

General

Size12″
Voice coilsdual 2 Ω
RMS power2,500 W

Mounting dimensions

Ø12 13/16″cutout Ø11 1/2″mounting depth 10 1/4″magnet Ø≈ 7 1/2″
Cutout diameter11 1/2″
Mounting depth10 1/4″
Overall diameter12 13/16″

“≈” 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