Soundstream T5-15 (2009)
15″ subwoofer · dual 2 Ω · 1,000 W RMS
| Source | web.archive.org · 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, 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| Bass character (Qtc) | Tight and punchy · 0.80 |
|---|---|
| Fc | 47 Hz |
| F3 (−3 dB, no cabin gain) | 44 Hz |
| Example box (outside) | 17 5/16″ × 17 5/16″ × 13 15/16″ |
Ported
deeper, louder| Tuning (Fb) | 31 Hz |
|---|---|
| Port | slot 2 3/16 × 16 11/16″, 36 7/8″ long |
| Port velocity at 1,000 W | 60 ft/s |
| F3 (−3 dB, no cabin gain) | 30 Hz |
| Example box (outside) | 31 1/2″ × 18 1/8″ × 13 11/16″ |
Deeper: 5.30 ft³ (150 L) tuned to 26 Hz, 31 1/2″ × 18 1/8″ × 24 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 | 15″ |
|---|---|
| Voice coils | dual 2 Ω |
| RMS power | 1,000 W |
| Fs | 27.8 Hz |
| Qts | 0.48 |
| Qes | 0.526 |
| Qms | 5.08 |
| Vas | 2.98 ft³ |
| Re (one coil) | 1.6 Ω |
|---|---|
| Sd | 136.5 in² |
| Xmax | 0.55″ |
| Vd | 75.2 in³ calc. |
| Mms | 425 g calc. |
| BL | 15 T·m calc. |
| EBP | 53 — sealed or ported calc. |
| Sensitivity, 1 W / 1 m | 87.4 dB calc. |
Mounting dimensions
| Cutout diameter | 14 1/4″ |
|---|---|
| Mounting depth | 9 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 Soundstream 15″ models
- Soundstream PCW-15 15″ · dual 4 Ω
- Soundstream PWS-15 15″ · dual 4 Ω
- Soundstream PXW-15 15″ · dual 4 Ω
- Soundstream PXW-15/2 15″ · dual 2 Ω
- Soundstream R1-15 15″ · dual 4 Ω
- Soundstream R1-15L 15″ · dual 4 Ω
- Soundstream R3.15 15″ · dual 2 Ω
- Soundstream RBW-15 15″ · dual 4 Ω
- Soundstream SPLX-152 ('07-'08) 15″ · dual 2 Ω
- Soundstream SPLX-152 (2006) 15″ · dual 2 Ω
- Soundstream SPLX-152HX 15″ · dual 2 Ω
- Soundstream SPLX-154 ('07-'08) 15″ · 4 Ω
Similar 15″ subwoofers from other brands
Close in Fs, Qts and Vas — a box of similar volume will suit them.
- Magnum MBW 15-22DC 1.31 ft³ sealed · 2.44 ft³ ported
- Audiobahn AW1500X 1.73 ft³ sealed · 2.65 ft³ ported
- Fi Audio SP4 15 D2 1.62 ft³ sealed · 2.01 ft³ ported
- Fi Audio SP415 v2.1 D2 1.59 ft³ sealed · 2.01 ft³ ported
- Rockford Fosgate Power T115D4 (2004) 2.19 ft³ sealed · 2.51 ft³ ported
- Cerwin-Vega Mobile VMAX152 (VMAX 15" DVC 2ohm) 2.01 ft³ sealed · 1.80 ft³ ported
FAQ
What box does the Soundstream T5-15 (2009) need?
Recommended net volume: 1.66 ft³ sealed, 2.40 ft³ ported tuned to 31 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 Soundstream T5-15 (2009) Thiele/Small specs?
Fs 27.8 Hz, Qts 0.48, Vas 2.98 ft³, Xmax 0.55″, Sd 136.5 in².
What is the Soundstream T5-15 (2009) mounting depth?
Mounting depth is 9 1/8″, cutout diameter 14 1/4″. The inside depth of the box must exceed the mounting depth by at least 1″.
How much power does the Soundstream T5-15 (2009) handle and how do I wire it?
RMS power rating: 1,000 W. Dual 2 Ω voice coils: series gives 4 Ω, parallel gives 1 Ω at the amp. Wiring for several subs and amp power — in the wiring calculator.