Soundstream SPLX-152 ('07-'08)
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 · 0.91 |
|---|---|
| Fc | 55 Hz |
| F3 (−3 dB, no cabin gain) | 47 Hz |
| Example box (outside) | 31 1/2″ × 18 1/8″ × 12 1/2″ |
Ported
deeper, louder| Tuning (Fb) | 34 Hz |
|---|---|
| Port | slot 1 15/16 × 16 11/16″, 31 1/8″ long |
| Port velocity at 1,000 W | 60 ft/s |
| F3 (−3 dB, no cabin gain) | 40 Hz |
| Example box (outside) | 23 9/16″ × 18 1/8″ × 15 3/4″ |
Deeper: 5.12 ft³ (145 L) tuned to 37 Hz, 31 1/2″ × 18 1/8″ × 22 1/8″ 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 | 42.3 Hz |
| Qts | 0.70 |
| Qes | 0.783 |
| Qms | 6.36 |
| Vas | 2.17 ft³ |
| Re (one coil) | 1.5 Ω |
|---|---|
| Sd | 132.6 in² |
| Xmax | 0.59″ |
| Vd | 78.3 in³ calc. |
| Mms | 238 g calc. |
| BL | 11 T·m calc. |
| EBP | 54 — sealed or ported calc. |
| Sensitivity, 1 W / 1 m | 89.8 dB calc. |
Mounting dimensions
| Cutout diameter | 14 1/8″ |
|---|---|
| Mounting depth | 8 5/8″ |
“≈” 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 (2006) 15″ · dual 2 Ω
- Soundstream SPLX-152HX 15″ · dual 2 Ω
- Soundstream SPLX-154 ('07-'08) 15″ · 4 Ω
- Soundstream SPLX-154 (2006) 15″ · 4 Ω
Similar 15″ subwoofers from other brands
Close in Fs, Qts and Vas — a box of similar volume will suit them.
- Quantum Audio QWX4000/15D4 2.83 ft³ sealed · 1.98 ft³ ported
- DD Audio 9515k ESP D1 2.83 ft³ sealed · 1.98 ft³ ported
- DD Audio 9515k ESP D2 2.83 ft³ sealed · 1.98 ft³ ported
- DD Audio 9515L ESP D1 2.83 ft³ sealed · 1.98 ft³ ported
- Timpano TPT-T1500-15 D4 2.83 ft³ sealed · 1.98 ft³ ported
- Hertz SPL Show SX 380D (DVC 2+2 ohm) 2.83 ft³ sealed · 1.98 ft³ ported
FAQ
What box does the Soundstream SPLX-152 ('07-'08) need?
Recommended net volume: 3.04 ft³ sealed, 2.12 ft³ ported tuned to 34 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 SPLX-152 ('07-'08) Thiele/Small specs?
Fs 42.3 Hz, Qts 0.70, Vas 2.17 ft³, Xmax 0.59″, Sd 132.6 in².
What is the Soundstream SPLX-152 ('07-'08) mounting depth?
Mounting depth is 8 5/8″, cutout diameter 14 1/8″. The inside depth of the box must exceed the mounting depth by at least 1″.
How much power does the Soundstream SPLX-152 ('07-'08) 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.