Crossfire C7 10D2

10″ subwoofer · dual 2 Ω · 1,200 W RMS

Fs 40 HzQts 0.36Vas 0.35 ft³Xmax 0.57″

Recommended box

For a sedan, one sub, 1,200 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 volume0.57 ft³ (16 L)
Qtc0.46
Fc51 Hz
F3 (−3 dB, no cabin gain)92 Hz
Example box (outside)12 5/8″ × 12 5/8″ × 10 1/8″
Open sealed box in designer

Ported

Net volume0.99 ft³ (28 L)
Tuning (Fb)29 Hz
Portround port Ø2 1/2″, 14 3/16″ long
Port velocity at 1,200 W389 ft/s
F3 (−3 dB, no cabin gain)69 Hz
Example box (outside)16 13/16″ × 15 3/4″ × 10 1/16″
Open ported box in designer
2030405060801001502006066727884HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs40 Hz
Qts0.36
Qes0.38
Qms6.08
Vas0.35 ft³
Re (one coil)2 Ω
Sd51.2 in²
Xmax0.57″
Vd29.2 in³ calc.
Mms244 g calc.
BL18 T·m calc.
EBP105 — suits ported calc.
Sensitivity, 1 W / 1 m84.3 dB calc.

General

Size10″
Voice coilsdual 2 Ω
RMS power1,200 W

Mounting dimensions

Ø10 1/2″cutout ≈ Ø9 7/16″mounting depth 7 1/2″magnet Ø≈ 6 1/8″
Cutout diameter≈ 9 7/16″
Mounting depth7 1/2″
Overall diameter10 1/2″

“≈” 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 Crossfire 10″ models