Gladen Alpha 10 (SVC 4 ohm)

10″ subwoofer · 4 Ω · 150 W RMS

Fs 37 HzQts 0.49Vas 1.34 ft³Xmax 0.14″

Recommended box

For a sedan, one sub, 150 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 volume0.81 ft³ (23 L)
Qtc0.80
Fc60 Hz
F3 (−3 dB, no cabin gain)57 Hz
Example box (outside)12 3/16″ × 12 3/16″ × 14 7/16″
Open sealed box in designer

Ported

Net volume2.15 ft³ (61 L)
Tuning (Fb)35 Hz
Portslot 1 9/16 × 14 5/16″, 18 15/16″ long
Port velocity at 150 W44 ft/s
F3 (−3 dB, no cabin gain)32 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 11 5/8″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs37 Hz
Qts0.49
Qes0.53
Qms6.22
Vas1.34 ft³
Re3.3 Ω
Sd55.2 in²
Xmax0.14″
Vd7.6 in³ calc.
Mms87 g calc.
BL11.2 T·m calc.
EBP70 — sealed or ported calc.
Sensitivity, 1 W / 1 m87.6 dB calc.

General

Size10″
Voice coils4 Ω
RMS power150 W

Mounting dimensions

Ø≈ 10 5/16″cutout ≈ Ø9 1/8″mounting depth ≈ 5 1/8″magnet Ø≈ 5 15/16″
Cutout diameter≈ 9 1/8″
Mounting depth≈ 5 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 Gladen 10″ models