Sundown Audio Xv1-10 D4
10″ subwoofer · dual 4 Ω · 1,250 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, 1,250 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 · 0.67 |
|---|---|
| Fc | 41 Hz |
| F3 (−3 dB, no cabin gain) | 45 Hz |
| Example box (outside) | 13″ × 13″ × 11 3/8″ |
Ported
deeper, louder| Tuning (Fb) | 33 Hz |
|---|---|
| Port | slot 1 15/16 × 14 5/16″, 74 1/16″ long |
| Port velocity at 1,250 W | 63 ft/s |
| F3 (−3 dB, no cabin gain) | 29 Hz |
| Example box (outside) | 31 1/2″ × 15 3/4″ × 10 15/16″ |
The volume and tuning are the recommendation, but the port doesn’t fit this example box. Size the box and port in the designer.
Open ported box in designerDeeper: 1.20 ft³ (34 L) tuned to 31 Hz, 17 7/16″ × 15 3/4″ × 11 7/16″ 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 | 1,250 W |
| Fs | 29.8 Hz |
| Qts | 0.49 |
| Qes | 0.54 |
| Qms | 5.37 |
| Vas | 0.62 ft³ |
| Re (one coil) | 3.05 Ω |
|---|---|
| Sd | 55.9 in² |
| Xmax | 1.18″ |
| Vd | 66 in³ calc. |
| Mms | 300 g calc. |
| BL | 17.8 T·m calc. |
| EBP | 55 — sealed or ported calc. |
| Sensitivity, 1 W / 1 m | 81.3 dB calc. |
Mounting dimensions
| Cutout diameter | 10″ |
|---|---|
| Mounting depth | 8 7/8″ |
| Overall diameter | 11 5/8″ |
Cone area (Sd) calculated from Fs, Vas and Mms: 55.9 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/20190807034628/http://sundownaudio.com/index.php/products/di
- web.archive.org/web/20210125011608/https://sundownaudio.com/lv/sa/discontinued/d
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.
- Alpine SWR-10D2 (Type-R) 0.46 ft³ sealed · 0.81 ft³ ported
- Rockford Fosgate Power T0D210 0.46 ft³ sealed · 1.34 ft³ ported
- Alpine R2-W10D2 0.48 ft³ sealed · 1.27 ft³ ported
- Audiobahn AWES10P 0.57 ft³ sealed · 0.71 ft³ ported
- Alpine R2-W10D4 0.48 ft³ sealed · 1.27 ft³ ported
- Cerwin-Vega Mobile ST102D (Stroker 10" DVC 2ohm) 0.55 ft³ sealed · 1.02 ft³ ported
FAQ
What box does the Sundown Audio Xv1-10 D4 need?
Recommended net volume: 0.71 ft³ sealed, 0.88 ft³ ported tuned to 33 Hz — for one sub in a sedan at 1,250 W. Fit the box to your space and amp in the free calculator, with plans and a cut sheet.
What are the Sundown Audio Xv1-10 D4 Thiele/Small specs?
Fs 29.8 Hz, Qts 0.49, Vas 0.62 ft³, Xmax 1.18″, Sd 55.9 in².
What is the Sundown Audio Xv1-10 D4 mounting depth?
Mounting depth is 8 7/8″, cutout diameter 10″. The inside depth of the box must exceed the mounting depth by at least 1″.
How much power does the Sundown Audio Xv1-10 D4 handle and how do I wire it?
RMS power rating: 1,250 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.