Rockford Fosgate Power T1S1-12 (Slim)

12″ subwoofer · 1 Ω · 600 W RMS

Fs 36 HzQts 1.06Vas 1.14 ft³Xmax 0.59″

Recommended box

For a sedan, one sub, 600 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 volume1.98 ft³ (56 L)
Qtc1.33
Fc45 Hz
F3 (−3 dB, no cabin gain)33 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 9 3/4″
Open sealed box in designer

Ported

Net volume3.35 ft³ (95 L)
Tuning (Fb)33 Hz
Portslot 2 9/16 × 14 5/16″, 21 13/16″ long
Port velocity at 600 W65 ft/s
F3 (−3 dB, no cabin gain)26 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 17 1/2″
Open ported box in designer
203040506080100150200667278849096HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs36 Hz
Qts1.06
Qes1.17
Qms11.22
Vas1.14 ft³
Re0.9 Ω
Sd86.8 in²
Xmax0.59″
Vd51.3 in³ calc.
Mms268 g calc.
BL6.8 T·m calc.
EBP31 — suits sealed calc.
Sensitivity, 1 W / 1 m83.1 dB calc.

General

Size12″
Voice coils1 Ω
RMS power600 W

Mounting dimensions

Ø≈ 12 3/8″cutout Ø11 1/4″mounting depth 3 1/16″magnet Ø≈ 7 5/16″
Cutout diameter11 1/4″
Mounting depth3 1/16″

“≈” 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 Rockford Fosgate 12″ models