Rockford Fosgate Punch P310D4 (Stage-3, 2004)

10″ subwoofer · dual 4 Ω · 400 W RMS

Fs 29 HzQts 0.55Vas 0.87 ft³Xmax 0.47″

Recommended box

For a sedan, one sub, 400 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 volume0.81 ft³ (23 L)
Qtc0.80
Fc42 Hz
F3 (−3 dB, no cabin gain)39 Hz
Example box (outside)12 5/8″ × 12 5/8″ × 13 1/2″
Open sealed box in designer

Ported

Net volume1.87 ft³ (53 L)
Tuning (Fb)26 Hz
Portslot 1 9/16 × 14 5/16″, 43 3/4″ long
Port velocity at 400 W58 ft/s
F3 (−3 dB, no cabin gain)23 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 12 5/16″
Open ported box in designer
2030405060801001502006066727884HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs29 Hz
Qts0.55
Qes0.61
Qms6.03
Vas0.87 ft³
Re (one coil)3.4 Ω
Sd48.1 in²
Xmax0.47″
Vd22.7 in³ calc.
Mms167 g calc.
BL13 T·m calc.
EBP48 — suits sealed calc.
Sensitivity, 1 W / 1 m81.9 dB calc.

General

Size10″
Voice coilsdual 4 Ω
RMS power400 W

Mounting dimensions

Ø10 13/16″cutout Ø9 5/16″mounting depth 5 15/16″magnet Ø≈ 6 1/16″
Cutout diameter9 5/16″
Mounting depth5 15/16″
Overall diameter10 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 Rockford Fosgate 10″ models