Spyder Street PWR 12 300W

12″ subwoofer · 4 Ω · 300 W RMS

Fs 25 HzQts 0.86Vas 2.41 ft³

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 volume1.73 ft³ (49 L)
Qtc1.32
Fc39 Hz
F3 (−3 dB, no cabin gain)29 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 8 3/4″
Open sealed box in designer

Ported

Net volume2.93 ft³ (83 L)
Tuning (Fb)31 Hz
Portslot 1 9/16 × 14 5/16″, 17 1/2″ long
Port velocity at 300 W56 ft/s
F3 (−3 dB, no cabin gain)26 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 14 13/16″
Open ported box in designer
203040506080100150200667278849096HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs25 Hz
Qts0.86
Qes1.02
Qms5.3
Vas2.41 ft³
Re3.6 Ω
Sd≈ 76 in²
Xmax≈ 0.39″
EBP25 — suits sealed calc.
Sensitivity, 1 W / 1 m82.2 dB calc.

General

Size12″
Voice coils4 Ω
RMS power300 W

Mounting dimensions

Ø12 1/8″cutout Ø10 11/16″mounting depth 5 11/16″magnet Ø≈ 6 15/16″
Cutout diameter10 11/16″
Mounting depth5 11/16″
Overall diameter12 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 Spyder 12″ models