Pioneer TS-W307D4
12″ subwoofer · dual 4 Ω · 400 W RMS
| Source | pioneer-car.eu · manufacturer data |
|---|---|
| Checked against source | October 2026 |
| Thiele/Small parameters | complete |
| Mounting dimensions | 2 of 4 — missing: frame outer diameter, magnet diameter; the designer will use an estimate |
Recommended box
For a sedan, one sub, 400 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| Bass character (Qtc) | Tight and punchy · 0.80 |
|---|---|
| Fc | 53 Hz |
| F3 (−3 dB, no cabin gain) | 51 Hz |
| Example box (outside) | 14 3/16″ × 14 3/16″ × 13 13/16″ |
Ported
deeper, louder| Tuning (Fb) | 35 Hz |
|---|---|
| Port | slot 1 9/16 × 14 5/16″, 38 5/16″ long |
| Port velocity at 400 W | 44 ft/s |
| F3 (−3 dB, no cabin gain) | 37 Hz |
| Example box (outside) | 21 7/16″ × 15 3/4″ × 13 3/16″ |
Deeper: 2.75 ft³ (78 L) tuned to 31 Hz, 31 1/2″ × 15 3/4″ × 14 7/8″ outside — a bigger box with flatter deep bass. Open in the calculator
Projects with this subwoofer
Boxes that users designed and published: plans, cut sheet and response graph.
Thiele/Small parameters
| Size | 12″ |
|---|---|
| Voice coils | dual 4 Ω |
| RMS power | 400 W |
| Fs | 34.8 Hz |
| Qts | 0.52 |
| Qes | 0.54 |
| Qms | 13.99 |
| Vas | 1.44 ft³ |
| Re (one coil) | 3 Ω |
|---|---|
| Sd | 71.3 in² |
| Xmax | 0.37″ |
| Vd | 26.4 in³ calc. |
| Mms | 153 g calc. |
| BL | 13.7 T·m calc. |
| EBP | 64 — sealed or ported calc. |
| Sensitivity, 1 W / 1 m | 87 dB calc. |
Mounting dimensions
| Cutout diameter | 10 15/16″ |
|---|---|
| Mounting depth | 6″ |
“≈” 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.
- SPL Dynamics PRO-300D4 1.02 ft³ sealed · 1.20 ft³ ported
- Machete M12 D2 Sport 0.99 ft³ sealed · 1.20 ft³ ported
- Machete M12 D4 0.99 ft³ sealed · 1.20 ft³ ported
- Elemental Designs E12a (2002) 1.20 ft³ sealed · 1.27 ft³ ported
- Machete M12 D1 Sport 0.95 ft³ sealed · 1.20 ft³ ported
- Soundstream T7.124 1.27 ft³ sealed · 1.27 ft³ ported
FAQ
What box does the Pioneer TS-W307D4 need?
Recommended net volume: 1.06 ft³ sealed, 1.17 ft³ ported tuned to 35 Hz — for one sub in a sedan at 400 W. Fit the box to your space and amp in the free calculator, with plans and a cut sheet.
What are the Pioneer TS-W307D4 Thiele/Small specs?
Fs 34.8 Hz, Qts 0.52, Vas 1.44 ft³, Xmax 0.37″, Sd 71.3 in².
What is the Pioneer TS-W307D4 mounting depth?
Mounting depth is 6″, cutout diameter 10 15/16″. The inside depth of the box must exceed the mounting depth by at least 1″.
How much power does the Pioneer TS-W307D4 handle and how do I wire it?
RMS power rating: 400 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.