PowerBass 3XL-151D
15″ subwoofer · dual 1 Ω · 1,000 W RMS
| Source | web.archive.org · manufacturer data |
|---|---|
| Checked against source | October 2026 |
| Thiele/Small parameters | complete |
| Mounting dimensions | 1 of 4 — missing: cutout, 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) | Flat and accurate · 0.73 |
|---|---|
| Fc | 51 Hz |
| F3 (−3 dB, no cabin gain) | 53 Hz |
| Example box (outside) | 17 5/16″ × 17 5/16″ × 11 13/16″ |
Ported
deeper, louder| Tuning (Fb) | 30 Hz |
|---|---|
| Port | slot 2 15/16 × 16 11/16″, 31 7/8″ long |
| Port velocity at 1,000 W | 64 ft/s |
| F3 (−3 dB, no cabin gain) | 28 Hz |
| Example box (outside) | 31 1/2″ × 18 1/8″ × 19 1/8″ |
Deeper: 3.39 ft³ (96 L) tuned to 30 Hz, 31 1/2″ × 18 1/8″ × 17 1/2″ 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 1 Ω |
| RMS power | 1,000 W |
| Fs | 27.3 Hz |
| Qts | 0.39 |
| Qes | 0.421 |
| Qms | 4.96 |
| Vas | 3.41 ft³ |
| Re (one coil) | 1.13 Ω |
|---|---|
| Sd | 131 in² |
| Xmax | 0.53″ |
| Vd | 69.6 in³ calc. |
| Mms | 357 g calc. |
| BL | 12.8 T·m calc. |
| EBP | 65 — sealed or ported calc. |
| Sensitivity, 1 W / 1 m | 88.7 dB calc. |
Mounting dimensions
| Cutout diameter | ≈ 14″ |
|---|---|
| Mounting depth | 9 3/8″ |
“≈” 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
- web.archive.org/web/20120523182731/http://www.powerbassusa.com:80/sites/powerbas
- web.archive.org/web/20100608133649/http://www.powerbassusa.com:80/3xl-151d-15-su
Other PowerBass 15″ models
- PowerBass 3XL-1501D 15″ · dual 1 Ω
- PowerBass 3XL-1502D 15″ · dual 2 Ω
- PowerBass M-1504 15″ · 4 Ω
Similar 15″ subwoofers from other brands
Close in Fs, Qts and Vas — a box of similar volume will suit them.
- Dayton Audio SS15-22 1.25 ft³ sealed · 3.67 ft³ ported
- Edge EDB15D2X-E7 1.11 ft³ sealed · 3.46 ft³ ported
- Kicker CompR 15" 2-Ohm DVC (48CWR152) 1.31 ft³ sealed · 3.99 ft³ ported
- Kicker CompR 15" 2-Ohm DVC (43CWR152) 1.34 ft³ sealed · 2.75 ft³ ported
- AMPIRE BLACK15.1 1.45 ft³ sealed · 4.06 ft³ ported
- Pride HP 15 D2 1.13 ft³ sealed · 3.64 ft³ ported
FAQ
What box does the PowerBass 3XL-151D need?
Recommended net volume: 1.34 ft³ sealed, 3.88 ft³ ported tuned to 30 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 PowerBass 3XL-151D Thiele/Small specs?
Fs 27.3 Hz, Qts 0.39, Vas 3.41 ft³, Xmax 0.53″, Sd 131 in².
What is the PowerBass 3XL-151D mounting depth?
Mounting depth is 9 3/8″. The inside depth of the box must exceed the mounting depth by at least 1″.
How much power does the PowerBass 3XL-151D handle and how do I wire it?
RMS power rating: 1,000 W. Dual 1 Ω voice coils: series gives 2 Ω, parallel gives 0.5 Ω at the amp. Wiring for several subs and amp power — in the wiring calculator.