Gladen SPL 12 (DVC)

12″ subwoofer · dual 1 Ω · 1,800 W RMS

Fs 38.8 HzQts 0.40Vas 0.89 ft³Xmax 0.79″

Recommended box

For a sedan, one sub, 1,800 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 volume0.83 ft³ (23.5 L)
Qtc0.57
Fc56 Hz
F3 (−3 dB, no cabin gain)74 Hz
Example box (outside)14 3/16″ × 14 3/16″ × 11 3/8″
Open sealed box in designer

Ported

Net volume1.45 ft³ (41 L)
Tuning (Fb)35 Hz
Portround port Ø2 1/2″, 5 11/16″ long
Port velocity at 1,800 W585 ft/s
F3 (−3 dB, no cabin gain)33 Hz
Example box (outside)20 3/4″ × 15 3/4″ × 11 1/4″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs38.8 Hz
Qts0.40
Qes0.43
Qms5.48
Vas0.89 ft³
Re (one coil)1.2 Ω
Sd76 in²
Xmax0.79″
Vd59.8 in³ calc.
Mms228 g calc.
BL12.5 T·m calc.
EBP90 — sealed or ported calc.
Sensitivity, 1 W / 1 m87.3 dB calc.

General

Size12″
Voice coilsdual 1 Ω
RMS power1,800 W

Mounting dimensions

Ø12 13/16″cutout Ø11 1/16″mounting depth 8 3/4″magnet Ø≈ 7 3/16″
Cutout diameter11 1/16″
Mounting depth8 3/4″
Overall diameter12 13/16″

“≈” 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 12″ models