Pioneer TS-A300D4

12″ subwoofer · dual 4 Ω · 500 W RMS

Fs 25 HzQts 0.68Vas 3.08 ft³Xmax 0.40″

Recommended box

For a sedan, one sub, 500 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 volume1.80 ft³ (51 L)
Qtc1.13
Fc41 Hz
F3 (−3 dB, no cabin gain)32 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 9 1/16″
Open sealed box in designer

Ported

Net volume3.07 ft³ (87 L)
Tuning (Fb)31 Hz
Portslot 1 15/16 × 14 5/16″, 21 1/8″ long
Port velocity at 500 W60 ft/s
F3 (−3 dB, no cabin gain)27 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 15 15/16″
Open ported box in designer
203040506080100150200667278849096HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs25 Hz
Qts0.68
Qes0.78
Qms5.6
Vas3.08 ft³
Re (one coil)4.3 Ω
Sd79.6 in²
Xmax0.40″
Vd31.6 in³ calc.
Mms174 g calc.
BL12.3 T·m calc.
EBP32 — suits sealed calc.
Sensitivity, 1 W / 1 m84.4 dB calc.

General

Size12″
Voice coilsdual 4 Ω
RMS power500 W

Mounting dimensions

Ø12″cutout Ø11 1/16″mounting depth 5 13/16″magnet Ø≈ 7 3/16″
Cutout diameter11 1/16″
Mounting depth5 13/16″
Overall diameter12″

“≈” 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 Pioneer 12″ models