ESX SXE8D2 (2x2 Ohm)

8″ subwoofer · dual 2 Ω · 300 W RMS

Fs 37 HzQts 0.40Vas 0.76 ft³Xmax 0.24″

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 volume0.32 ft³ (9 L)
Qtc0.73
Fc68 Hz
F3 (−3 dB, no cabin gain)70 Hz
Example box (outside)10 1/4″ × 10 1/4″ × 9 1/4″
Open sealed box in designer

Ported

Net volume0.81 ft³ (23 L)
Tuning (Fb)39 Hz
Portround port Ø3″, 13″ long
Port velocity at 300 W121 ft/s
F3 (−3 dB, no cabin gain)37 Hz
Example box (outside)20 5/8″ × 15 3/4″ × 7 5/16″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs37 Hz
Qts0.40
Qes0.47
Qms2.64
Vas0.76 ft³
Re (one coil)2 Ω
Sd33.2 in²
Xmax0.24″
Vd7.8 in³ calc.
Mms56 g calc.
BL7.4 T·m calc.
EBP79 — sealed or ported calc.
Sensitivity, 1 W / 1 m85.6 dB calc.

General

Size8″
Voice coilsdual 2 Ω
RMS power300 W

Mounting dimensions

Ø8 1/2″cutout Ø7 3/16″mounting depth 4 3/4″magnet Ø4 5/16″
Cutout diameter7 3/16″
Mounting depth4 3/4″
Overall diameter8 1/2″
Magnet diameter4 5/16″

“≈” 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 ESX 8″ models