Gladen RS 08 EXTREME (SVC 2 ohm)

8″ subwoofer · 2 Ω · 200 W RMS

Fs 36.3 HzQts 0.37Vas 0.75 ft³

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 volume0.32 ft³ (9 L)
Qtc0.68
Fc66 Hz
F3 (−3 dB, no cabin gain)73 Hz
Example box (outside)10 1/4″ × 10 1/4″ × 9 1/4″
Open sealed box in designer

Ported

Net volume0.67 ft³ (19 L)
Tuning (Fb)40 Hz
Portround port Ø2 1/2″, 10 9/16″ long
Port velocity at 200 W131 ft/s
F3 (−3 dB, no cabin gain)39 Hz
Example box (outside)19 5/8″ × 15 3/4″ × 6 1/2″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs36.3 Hz
Qts0.37
Qes0.4
Qms5.65
Vas0.75 ft³
Re2 Ω
Sd34.3 in²
Xmax≈ 0.39″
Mms63 g calc.
BL8.5 T·m calc.
EBP91 — sealed or ported calc.
Sensitivity, 1 W / 1 m86 dB calc.

General

Size8″
Voice coils2 Ω
RMS power200 W

Mounting dimensions

Ø8 3/8″cutout Ø7 3/16″mounting depth 4 1/8″magnet Ø4 15/16″
Cutout diameter7 3/16″
Mounting depth4 1/8″
Overall diameter8 3/8″
Magnet diameter4 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

Other Gladen 8″ models