Sundown Audio SDv3-10 D4
10″ subwoofer · dual 4 Ω · 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, 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) | Tight and punchy · 0.80 |
|---|---|
| Fc | 45 Hz |
| F3 (−3 dB, no cabin gain) | 43 Hz |
| Example box (outside) | 12 5/8″ × 12 5/8″ × 11 1/16″ |
Ported
deeper, louder| Tuning (Fb) | 30 Hz |
|---|---|
| Port | slot 1 × 14 5/16″, 35 3/16″ long |
| Port velocity at 500 W | 74 ft/s |
| F3 (−3 dB, no cabin gain) | 29 Hz |
| Example box (outside) | 31 1/2″ × 15 3/4″ × 7 15/16″ |
Deeper: 2.05 ft³ (58 L) tuned to 25 Hz, 31 1/2″ × 15 3/4″ × 13″ 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 | 10″ |
|---|---|
| Voice coils | dual 4 Ω |
| RMS power | 500 W |
| Fs | 25.4 Hz |
| Qts | 0.45 |
| Qes | 0.5 |
| Qms | 4.38 |
| Vas | 1.37 ft³ |
| Re (one coil) | 3.5 Ω |
|---|---|
| Sd | 53.3 in² |
| Xmax | 0.57″ |
| Vd | 30.4 in³ calc. |
| Mms | 170 g calc. |
| BL | 13.8 T·m calc. |
| EBP | 51 — sealed or ported calc. |
| Sensitivity, 1 W / 1 m | 83 dB calc. |
Mounting dimensions
| Cutout diameter | 9 1/4″ |
|---|---|
| Mounting depth | 4 1/2″ |
| Overall diameter | 10 1/2″ |
Cone area (Sd) calculated from Fs, Vas and Mms: 53.3 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/20191212172929/https://sundownaudio.com/index.php/subwoofers
- web.archive.org/web/20161227023236/http://www.sundownaudio.com/index.php/subwoof
Other Sundown Audio 10″ models
- Sundown Audio Ev2-10 D2 10″ · dual 2 Ω
- Sundown Audio Ev2-10 D4 10″ · dual 4 Ω
- Sundown Audio Ev4-10 D2 10″ · dual 2 Ω
- Sundown Audio Ev4-10 D4 10″ · dual 4 Ω
- Sundown Audio HZ-10 D4 10″ · dual 4 Ω
- Sundown Audio HZS-10 D4 10″ · dual 4 Ω
- Sundown Audio LCSv2-10 D4 10″ · dual 4 Ω
- Sundown Audio M10 D1 10″ · dual 1 Ω
- Sundown Audio M10 D2 10″ · dual 2 Ω
- Sundown Audio NSv2-10 D2 10″ · dual 2 Ω
- Sundown Audio NSv4-10 D1 10″ · dual 1 Ω
- Sundown Audio NSv4-10 D2 10″ · dual 2 Ω
Similar 10″ subwoofers from other brands
Close in Fs, Qts and Vas — a box of similar volume will suit them.
- JL Audio 10W1v3-4 0.71 ft³ sealed · 0.92 ft³ ported
- JL Audio 10W1v3-2 0.67 ft³ sealed · 0.92 ft³ ported
- Audiobahn ALUM10N 0.64 ft³ sealed · 0.99 ft³ ported
- Audiobahn ALUM10Q 0.64 ft³ sealed · 0.99 ft³ ported
- Diamond D102 0.57 ft³ sealed · 1.13 ft³ ported
- Focal Performance Sub P 25 DB (DVC 4+4 ohm) 0.60 ft³ sealed · 1.17 ft³ ported
FAQ
What box does the Sundown Audio SDv3-10 D4 need?
Recommended net volume: 0.64 ft³ sealed, 1.09 ft³ ported tuned to 30 Hz — for one sub in a sedan at 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 SDv3-10 D4 Thiele/Small specs?
Fs 25.4 Hz, Qts 0.45, Vas 1.37 ft³, Xmax 0.57″, Sd 53.3 in².
What is the Sundown Audio SDv3-10 D4 mounting depth?
Mounting depth is 4 1/2″, cutout diameter 9 1/4″. The inside depth of the box must exceed the mounting depth by at least 1″.
How much power does the Sundown Audio SDv3-10 D4 handle and how do I wire it?
RMS power rating: 500 W. Dual 4 Ω voice coils: series gives 8 Ω, parallel gives 2 Ω at the amp. Wiring for several subs and amp power — in the wiring calculator.