DLS PE8.D2

8″ subwoofer · dual 2 Ω · 200 W RMS

Fs 33.2 HzQts 0.48Vas 0.89 ft³Xmax 0.35″

Recommended box

For a sedan, one sub, 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 volume0.49 ft³ (14 L)
Qtc0.80
Fc56 Hz
F3 (−3 dB, no cabin gain)53 Hz
Example box (outside)10 5/8″ × 10 5/8″ × 12 3/16″
Open sealed box in designer

Ported

Net volume1.31 ft³ (37 L)
Tuning (Fb)32 Hz
Portslot 1 9/16 × 14 5/16″, 41 3/16″ long
Port velocity at 200 W37 ft/s
F3 (−3 dB, no cabin gain)30 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 9 3/4″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs33.2 Hz
Qts0.48
Qes0.51
Qms7.83
Vas0.89 ft³
Re (one coil)1.9 Ω
Sd33.7 in²
Xmax0.35″
Vd11.9 in³ calc.
Mms61 g calc.
BL6.9 T·m calc.
EBP65 — sealed or ported calc.
Sensitivity, 1 W / 1 m84.6 dB calc.

General

Size8″
Voice coilsdual 2 Ω
RMS power200 W

Mounting dimensions

Ø≈ 8 1/2″cutout ≈ Ø7 5/16″mounting depth ≈ 3 15/16″magnet Ø≈ 4 3/4″
Cutout diameter≈ 7 5/16″
Mounting depth≈ 3 15/16″

“≈” 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