JBL 1000GTi

10″ subwoofer · 4 Ω · 300 W RMS

Fs 62 HzQts 0.64Vas 0.67 ft³Xmax 0.24″

Recommended box

For a sedan, one sub, 300 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 volume1.24 ft³ (35 L)
Qtc0.80
Fc77 Hz
F3 (−3 dB, no cabin gain)71 Hz
Example box (outside)12 3/16″ × 12 3/16″ × 20 11/16″
Open sealed box in designer

Ported

Net volume2.08 ft³ (59 L)
Tuning (Fb)47 Hz
Portslot 1 3/4 × 14 5/16″, 10 9/16″ long
Port velocity at 300 W65 ft/s
F3 (−3 dB, no cabin gain)41 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 10 3/4″
Open ported box in designer
203040506080100150200667278849096HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs62 Hz
Qts0.64
Qes0.73
Qms5.44
Vas0.67 ft³
Re3.2 Ω
Sd53.5 in²
Xmax0.24″
Vd12.6 in³ calc.
Mms59 g calc.
BL10 T·m calc.
EBP85 — sealed or ported calc.
Sensitivity, 1 W / 1 m89.9 dB calc.

General

Size10″
Voice coils4 Ω
RMS power300 W

Mounting dimensions

Ø10 1/4″cutout Ø9″mounting depth 4 5/16″magnet Ø≈ 5 7/8″
Cutout diameter9″
Mounting depth4 5/16″
Overall diameter10 1/4″

“≈” 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 10″ models