Pioneer TS-W306R
12″ subwoofer · 4 Ω · 350 W RMS
The Pioneer TS-W306R is a 12″ subwoofer. With Qts 0.82 and EBP 29 it suits a sealed box: tight bass in a small enclosure; a ported box would need a lot of volume. Modest excursion (Xmax 0.46″) — for clean sound at moderate levels, not for SPL competitions.
| Source | pioneer-car.eu · manufacturer data |
|---|---|
| Checked against source | October 2026 |
| Thiele/Small parameters | complete |
| Mounting dimensions | 3 of 4 — missing: magnet diameter; the designer will use an estimate |
Recommended box
For a sedan, one sub, 350 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) | Boomy, with a bump · 1.41 |
|---|---|
| Fc | 43 Hz |
| F3 (−3 dB, no cabin gain) | 31 Hz |
| Example box (outside) | 31 1/2″ × 15 3/4″ × 9 1/16″ |
Ported
deeper, louder| Tuning (Fb) | 30 Hz |
|---|---|
| Port | slot 1 9/16 × 14 5/16″, 24 3/8″ long |
| Port velocity at 350 W | 45 ft/s |
| F3 (−3 dB, no cabin gain) | 29 Hz |
| Example box (outside) | 31 1/2″ × 15 3/4″ × 13 1/16″ |
Deeper: 3.07 ft³ (87 L) tuned to 34 Hz, 31 1/2″ × 15 3/4″ × 15 1/4″ 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 | 4 Ω |
| RMS power | 350 W |
| Fs | 24.6 Hz |
| Qts | 0.82 |
| Qes | 0.86 |
| Qms | 15.6 |
| Vas | 3.61 ft³ |
| Re | 3.6 Ω |
|---|---|
| Sd | 79.8 in² |
| Xmax | 0.46″ |
| Vd | 36.7 in³ calc. |
| Mms | 154 g calc. |
| BL | 10 T·m calc. |
| EBP | 29 — suits sealed calc. |
| Sensitivity, 1 W / 1 m | 84.5 dB calc. |
Mounting dimensions
| Cutout diameter | 11 1/16″ |
|---|---|
| Mounting depth | 5 5/16″ |
| Overall diameter | 12 1/2″ |
Where it fits in a vehicle
Spots from our vehicle guides where the cutout, mounting depth and recommended box fit. The spot sizes are approximate — measure your own vehicle.
- Bronco 4-door — behind the rear seat sealed and ported box
- Wrangler 4-door, hard top — behind the rear seat sealed and ported box
- Wrangler 4-door, soft top — behind the rear seat sealed and ported box
- Silverado / Sierra Crew Cab — under the rear seat sealed box
- FJ Cruiser — behind the rear seat sealed and ported box
- El Camino 1978–87 — behind the seat sealed and ported box
- Cherokee XJ — cargo area, spare moved out sealed and ported box
- Excursion — behind the third row sealed and ported box
- Mustang 2015–2023 coupe — trunk sealed and ported box
- Challenger / Charger — trunk sealed and ported box
- Club Car Precedent — under the rear seat sealed box
“≈” 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
- pioneer-car.eu/asset/user_manuals/UPLOAD_ID_12337/890f1d206d280dae71ad42e6c22738
- pioneer-car.eu/uk/ts-w306r/ts-w306r
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.
- Kenwood KFC-W3013PS 1.80 ft³ sealed · 2.33 ft³ ported
- Soundstream SPL MULE 1.66 ft³ sealed · 2.15 ft³ ported
- Pyle PLW12RD 1.73 ft³ sealed · 2.26 ft³ ported
- Quantum Audio QW1000/12S4 1.87 ft³ sealed · 2.44 ft³ ported
- Spyder Street PWR 12 300W 1.73 ft³ sealed · 1.94 ft³ ported
- Quantum Audio QW1000/12D4 1.87 ft³ sealed · 2.40 ft³ ported
FAQ
What box does the Pioneer TS-W306R need?
Recommended net volume: 1.80 ft³ sealed, 2.37 ft³ ported tuned to 30 Hz — for one sub in a sedan at 350 W. Fit the box to your space and amp in the free calculator, with plans and a cut sheet.
What are the Pioneer TS-W306R Thiele/Small specs?
Fs 24.6 Hz, Qts 0.82, Vas 3.61 ft³, Xmax 0.46″, Sd 79.8 in².
What is the Pioneer TS-W306R mounting depth?
Mounting depth is 5 5/16″, cutout diameter 11 1/16″. The inside depth of the box must exceed the mounting depth by at least 1″.
How much power does the Pioneer TS-W306R handle and how do I wire it?
RMS power rating: 350 W. Wiring for several subs and amp power — in the wiring calculator.
Is the Pioneer TS-W306R better sealed or ported?
EBP 29: a sealed box (1.80 ft³) suits it best — tight bass in a compact enclosure. Ported is possible (2.37 ft³, tuned to 30 Hz) but larger.
What port does the Pioneer TS-W306R need?
For the 2.37 ft³ ported box tuned to 30 Hz: slot 1 9/16 × 14 5/16″, 24 3/8″ long, area 22.6 in²; or a round port Ø5 3/8″, ≈ 24 3/8″ long. Port air speed at 350 W: 45 ft/s.
What box do two Pioneer TS-W306R subs need?
Two subs need twice the volume: 3.60 ft³ sealed, or 4.73 ft³ ported at the same 30 Hz tuning with twice the port area. One shared chamber or one per sub — whatever fits your vehicle.