Clarion WF2520D

10″ subwoofer · dual 4 Ω · 300 W RMS

Fs 45 HzQts 0.91Vas 0.71 ft³Xmax 0.20″

Recommended box

For a sedan, one sub, 300 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 volume1.20 ft³ (34 L)
Qtc1.15
Fc57 Hz
F3 (−3 dB, no cabin gain)44 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 6 1/2″
Open sealed box in designer

Ported

Net volume2.01 ft³ (57 L)
Tuning (Fb)38 Hz
Portslot 1 9/16 × 14 5/16″, 16 13/16″ long
Port velocity at 300 W61 ft/s
F3 (−3 dB, no cabin gain)31 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 10 15/16″
Open ported box in designer
203040506080100150200667278849096HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs45 Hz
Qts0.91
Qes1.085
Qms5.72
Vas0.71 ft³
Re (one coil)3.6 Ω
Sd52.2 in²
Xmax0.20″
Vd10.3 in³ calc.
Mms99 g calc.
BL9.7 T·m calc.
EBP41 — suits sealed calc.
Sensitivity, 1 W / 1 m84.3 dB calc.

General

Size10″
Voice coilsdual 4 Ω
RMS power300 W

Mounting dimensions

Ø10 1/4″cutout Ø9 3/16″mounting depth 3 1/8″magnet Ø≈ 6″
Cutout diameter9 3/16″
Mounting depth3 1/8″
Overall diameter10 1/4″

“≈” 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 Clarion 10″ models