Sundown Audio Zv3-15 D1
15″ subwoofer · dual 1 Ω · 1,500 W RMS
| Source | web.archive.org · 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, 1,500 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 · 0.72 |
|---|---|
| Fc | 52 Hz |
| F3 (−3 dB, no cabin gain) | 53 Hz |
| Example box (outside) | 17 5/16″ × 17 5/16″ × 12 1/2″ |
Ported
deeper, louder| Tuning (Fb) | 34 Hz |
|---|---|
| Port | slot 2 9/16 × 16 11/16″, 45 7/16″ long |
| Port velocity at 1,500 W | 62 ft/s |
| F3 (−3 dB, no cabin gain) | 33 Hz |
| Example box (outside) | 24 3/8″ × 18 1/8″ × 17 1/8″ |
Deeper: 3.43 ft³ (97 L) tuned to 31 Hz, 31 1/2″ × 18 1/8″ × 19 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 | 1,500 W |
| Fs | 33.4 Hz |
| Qts | 0.47 |
| Qes | 0.5 |
| Qms | 7.3 |
| Vas | 2.02 ft³ |
| Re (one coil) | 0.9 Ω |
|---|---|
| Sd | 122.8 in² |
| Xmax | 1.18″ |
| Vd | 145 in³ calc. |
| Mms | 353 g calc. |
| BL | 11.5 T·m calc. |
| EBP | 67 — sealed or ported calc. |
| Sensitivity, 1 W / 1 m | 88.3 dB calc. |
Mounting dimensions
| Cutout diameter | 14 1/8″ |
|---|---|
| Mounting depth | 10″ |
| Overall diameter | 15 5/8″ |
Cone area (Sd) calculated from Fs, Vas and Mms: 122.8 in².
“≈” 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/20161229105411/http://sundownaudio.com/index.php/subwoofers/
- web.archive.org/web/20150216021305/http://www.sundownaudio.com/index.php/product
Other Sundown Audio 15″ models
- Sundown Audio Ev2-15 D2 15″ · dual 2 Ω
- Sundown Audio Ev2-15 D4 15″ · dual 4 Ω
- Sundown Audio Ev4-15 D2 15″ · dual 2 Ω
- Sundown Audio Ev4-15 D4 15″ · dual 4 Ω
- Sundown Audio M15 D1 15″ · dual 1 Ω
- Sundown Audio M15 D2 15″ · dual 2 Ω
- Sundown Audio NSv1-15 D2 15″ · dual 2 Ω
- Sundown Audio NSv2-15 D2 15″ · dual 2 Ω
- Sundown Audio NSv4-15 D1 15″ · dual 1 Ω
- Sundown Audio NSv4-15 D2 15″ · dual 2 Ω
- Sundown Audio NSv6-15 D1 15″ · dual 1 Ω
- Sundown Audio NSv6-15 D2 15″ · dual 2 Ω
Similar 15″ subwoofers from other brands
Close in Fs, Qts and Vas — a box of similar volume will suit them.
- SPL Dynamics XTR-380D4S 1.17 ft³ sealed · 2.05 ft³ ported
- SPL Dynamics XTR-380D2S 1.13 ft³ sealed · 1.98 ft³ ported
- American Bass XFL-1544 1.34 ft³ sealed · 3.00 ft³ ported
- Ascendant Audio Havoc 15 D1 1.20 ft³ sealed · 2.01 ft³ ported
- CT Sounds MESO-15 D4 1.13 ft³ sealed · 2.01 ft³ ported
- Kicker CompQ 15" 2-Ohm DVC (51CWQ152) 1.20 ft³ sealed · 4.52 ft³ ported
FAQ
What box does the Sundown Audio Zv3-15 D1 need?
Recommended net volume: 1.45 ft³ sealed, 1.94 ft³ ported tuned to 34 Hz — for one sub in a sedan at 1,500 W. Fit the box to your space and amp in the free calculator, with plans and a cut sheet.
What are the Sundown Audio Zv3-15 D1 Thiele/Small specs?
Fs 33.4 Hz, Qts 0.47, Vas 2.02 ft³, Xmax 1.18″, Sd 122.8 in².
What is the Sundown Audio Zv3-15 D1 mounting depth?
Mounting depth is 10″, 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 Sundown Audio Zv3-15 D1 handle and how do I wire it?
RMS power rating: 1,500 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.