JBL Stage 810

8″ subwoofer · 4 Ω · 200 W RMS

Fs 41.6 HzQts 0.35Vas 0.56 ft³Xmax 0.24″

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 volume0.28 ft³ (8 L)
Qtc0.60
Fc72 Hz
F3 (−3 dB, no cabin gain)91 Hz
Example box (outside)10 1/4″ × 10 1/4″ × 8 1/2″
Open sealed box in designer

Ported

Net volume0.64 ft³ (18 L)
Tuning (Fb)42 Hz
Portround port Ø2 1/2″, 10 1/16″ long
Port velocity at 200 W137 ft/s
F3 (−3 dB, no cabin gain)41 Hz
Example box (outside)19 7/16″ × 15 3/4″ × 6 5/16″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs41.6 Hz
Qts0.35
Qes0.37
Qms5.46
Vas0.56 ft³
Re3.6 Ω
Sd32.3 in²
Xmax0.24″
Vd7.9 in³ calc.
Mms57 g calc.
BL12 T·m calc.
EBP112 — suits ported calc.
Sensitivity, 1 W / 1 m86.9 dB calc.

General

Size8″
Voice coils4 Ω
RMS power200 W

Mounting dimensions

Ø8 1/8″cutout Ø7″mounting depth 3 3/4″magnet Ø≈ 4 9/16″
Cutout diameter7″
Mounting depth3 3/4″
Overall diameter8 1/8″

“≈” 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 JBL 8″ models