Sony XS-GTR120L

12″ subwoofer · 4 Ω · 380 W RMS

Fs 32 HzQts 0.36Vas 2.12 ft³Xmax 0.30″

Recommended box

For a sedan, one sub, 380 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 volume0.71 ft³ (20 L)
Qtc0.71
Fc64 Hz
F3 (−3 dB, no cabin gain)67 Hz
Example box (outside)14 3/16″ × 14 3/16″ × 10 1/16″
Open sealed box in designer

Ported

Net volume1.66 ft³ (47 L)
Tuning (Fb)37 Hz
Portslot 1 9/16 × 14 5/16″, 22 5/8″ long
Port velocity at 380 W58 ft/s
F3 (−3 dB, no cabin gain)37 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 10 1/8″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs32 Hz
Qts0.36
Qes0.39
Qms4.15
Vas2.12 ft³
Re3 Ω
Sd76.1 in²
Xmax0.30″
Vd22.5 in³ calc.
Mms141 g calc.
BL14.8 T·m calc.
EBP82 — sealed or ported calc.
Sensitivity, 1 W / 1 m89 dB calc.

General

Size12″
Voice coils4 Ω
RMS power380 W

Mounting dimensions

Ø13″cutout Ø10 7/8″mounting depth 6 7/16″magnet Ø≈ 7 1/16″
Cutout diameter10 7/8″
Mounting depth6 7/16″
Overall diameter13″

“≈” 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 Sony 12″ models