Pioneer TS-W3001D4

12″ subwoofer · dual 4 Ω · 1,000 W RMS

33.3 HzFs, resonance

0.60Qts

0.42 ft³Vas

0.51″Xmax

1,000 WRMS

Source	pioneer-car.eu · manufacturer data
Checked against source	October 2026
Thiele/Small parameters	complete
Mounting dimensions	0 of 4 — missing: cutout, mounting depth, frame outer diameter, magnet diameter; the designer will use an estimate

The published specs don’t add up:

Fs, Vas and Sd don't match the moving mass of 401.32 g (they give 522 g) — one of the spec sheet values is probably wrong.

Recommended box

For a sedan, one sub, 1,000 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

smaller, tighter

0.60 ft³ (17 L)

Net volume

Bass character (Qtc)	Tight and punchy · 0.79
Fc	43 Hz
F3 (−3 dB, no cabin gain)	41 Hz
Example box (outside)	14 3/16″ × 14 3/16″ × 8 15/16″

Open sealed box in designer

Ported

deeper, louder

1.09 ft³ (31 L)

Net volume

Tuning (Fb)	36 Hz
Port	slot 1 9/16 × 14 5/16″, 38 5/8″ long
Port velocity at 1,000 W	89 ft/s
F3 (−3 dB, no cabin gain)	30 Hz
Example box (outside)	20 13/16″ × 15 3/4″ × 13 3/16″

At 1,000 W this example’s port will be noisy: air speed 89 ft/s, while the limit is 82 ft/s. It stays quiet up to about 850 W. Full power needs a port of at least 24.4 in², which means a bigger box than this example — size it in the designer.

Open ported box in designer

Deeper: 1.48 ft³ (42 L) tuned to 25 Hz, 31 1/2″ × 15 3/4″ × 8 5/8″ outside — a bigger box with flatter deep bass. Open in the calculator

Where to buy Amazon

Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Size	12″
Voice coils	dual 4 Ω
RMS power	1,000 W
Fs	33.3 Hz
Qts	0.60
Qes	0.63
Qms	13.99
Vas	0.42 ft³

Re (one coil)	3.3 Ω
Sd	67.7 in²
Xmax	0.51″
Vd	34.4 in³ calc.
Mms	522 g calc.
BL	23.9 T·m calc.
EBP	53 — sealed or ported calc.
Sensitivity, 1 W / 1 m	80.4 dB calc.

Mounting dimensions

Cutout diameter	≈ 11 1/8″
Mounting depth	≈ 5 7/8″

“≈” 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 Pioneer 12″ models

Pioneer TS-300D4 12″ · dual 4 Ω
Pioneer TS-300S4 12″ · 4 Ω
Pioneer TS-A30S4 12″ · 4 Ω
Pioneer TS-A120D4 12″ · dual 4 Ω
Pioneer TS-A120S4E 12″ · 4 Ω
Pioneer TS-A300D4 12″ · dual 4 Ω
Pioneer TS-A301D4 12″ · dual 4 Ω
Pioneer TS-A301S4 12″ · 4 Ω
Pioneer TS-A3000LS4 12″ · 4 Ω
Pioneer TS-D12D2 12″ · dual 2 Ω
Pioneer TS-D12D4 12″ · dual 4 Ω
Pioneer TS-SW3002S4 12″ · 4 Ω

Similar 12″ subwoofers from other brands

Close in Fs, Qts and Vas — a box of similar volume will suit them.

Ground Zero GZNW 30XMAX-II (2x1 Ohm) 0.92 ft³ sealed · 1.20 ft³ ported
Sundown Audio M12 D2 1.02 ft³ sealed · 1.13 ft³ ported
Massive Audio BOA121 0.94 ft³ sealed · 1.13 ft³ ported
Rockford Fosgate Power T2D412 0.78 ft³ sealed · 1.80 ft³ ported
American Bass XR-1222 1.20 ft³ sealed · 2.12 ft³ ported
Phoenix Gold ELITE2.12D4 (Elite 2, DVC 4 ohm) 0.71 ft³ sealed · 1.27 ft³ ported

FAQ

What box does the Pioneer TS-W3001D4 need?

Recommended net volume: 0.60 ft³ sealed, 1.09 ft³ ported tuned to 36 Hz — for one sub in a sedan at 1,000 W. Fit the box to your space and amp in the free calculator, with plans and a cut sheet.

What are the Pioneer TS-W3001D4 Thiele/Small specs?

Fs 33.3 Hz, Qts 0.60, Vas 0.42 ft³, Xmax 0.51″, Sd 67.7 in².

How much power does the Pioneer TS-W3001D4 handle and how do I wire it?

RMS power rating: 1,000 W. Dual 4 Ω voice coils: series gives 8 Ω, parallel gives 2 Ω at the amp. Wiring for several subs and amp power — in the wiring calculator.