Rockford Fosgate Punch HE2 RFP4110

10″ subwoofer · dual 2 Ω · 400 W RMS

Fs 26 HzQts 0.46Vas 1.13 ft³Xmax 0.51″

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 volume0.57 ft³ (16 L)
Qtc0.81
Fc45 Hz
F3 (−3 dB, no cabin gain)43 Hz
Example box (outside)12 5/8″ × 12 5/8″ × 10 1/8″
Open sealed box in designer

Ported

Net volume1.87 ft³ (53 L)
Tuning (Fb)25 Hz
Portslot 1 9/16 × 14 5/16″, 47 5/8″ 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 5/8″
Open ported box in designer
2030405060801001502006066727884HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs26 Hz
Qts0.46
Qes0.5
Qms6.61
Vas1.13 ft³
Re (one coil)1.68 Ω
Sd52 in²
Xmax0.51″
Vd26.6 in³ calc.
Mms186 g calc.
BL10.1 T·m calc.
EBP52 — sealed or ported calc.
Sensitivity, 1 W / 1 m82.5 dB calc.

General

Size10″
Voice coilsdual 2 Ω
RMS power400 W

Mounting dimensions

Ø10 1/2″cutout Ø9 5/16″mounting depth 5 7/8″magnet Ø≈ 6 1/16″
Cutout diameter9 5/16″
Mounting depth5 7/8″
Overall diameter10 1/2″

Cone area (Sd) calculated from Fs, Vas and Mms: 52 in².

Judging by its value, the published Re is for both coils in series — converted to per coil.

“≈” 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