Sundown Audio Ev4-10 D4
10″ subwoofer · dual 4 Ω · 750 W RMS
The Sundown Audio Ev4-10 D4 is a 10″ subwoofer. With Qts 0.39 and EBP 78 it works both sealed and ported: sealed is tighter and smaller, ported is deeper and louder.
| Source | sundownaudio.com · manufacturer data |
|---|---|
| Checked against source | October 2026 |
| Thiele/Small parameters | complete |
| Mounting dimensions | 4 of 4 — all given |
Recommended box
For a sedan, one sub, 750 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) | Dry and tight · 0.61 |
|---|---|
| Fc | 52 Hz |
| F3 (−3 dB, no cabin gain) | 64 Hz |
| Example box (outside) | 12 3/16″ × 12 3/16″ × 9 3/16″ |
Ported
deeper, louderManufacturer spec: 1.01 ft³, tuned to 35 Hz · source
| Tuning (Fb) | 35 Hz |
|---|---|
| Port | 2 round ports Ø2 1/2″, 19 3/8″ long |
| Port velocity at 750 W | 159 ft/s |
| F3 (−3 dB, no cabin gain) | 32 Hz |
| Example box (outside) | 23 7/8″ × 15 3/4″ × 8 1/16″ |
At 750 W this example’s port will be noisy: air speed 159 ft/s, while the limit is 82 ft/s. It stays quiet up to about 190 W. Full power needs a port of at least 19.3 in², which means a bigger box than this example — size it in the designer.
Open ported box in designerDeeper: 0.99 ft³ (28 L) tuned to 35 Hz, 23 5/16″ × 15 3/4″ × 8 1/16″ 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 | 750 W |
| Fs | 33.5 Hz |
| Qts | 0.39 |
| Qes | 0.43 |
| Qms | 4.39 |
| Vas | 0.66 ft³ |
| Re (one coil) | 3.05 Ω |
|---|---|
| Sd | 50.9 in² |
| Xmax | 0.55″ |
| Vd | 28.1 in³ calc. |
| Mms | 184 g calc. |
| BL | 16.6 T·m calc. |
| EBP | 78 — sealed or ported calc. |
| Sensitivity, 1 W / 1 m | 84.2 dB calc. |
Mounting dimensions
| Cutout diameter | 9 3/16″ |
|---|---|
| Mounting depth | 5 5/8″ |
| Overall diameter | 10″ |
| Magnet diameter | 6 3/8″ |
Where it fits in a vehicle
Spots from our vehicle guides where the cutout, mounting depth and recommended box fit. The spot sizes are approximate — measure your own vehicle.
- F-150 SuperCrew — under the rear seat sealed and ported box
- Ram Crew Cab — under the rear seat sealed and ported box
- Tacoma Double Cab — under the rear seat sealed and ported box
- Bronco 4-door — behind the rear seat sealed and ported box
- Wrangler 4-door, hard top — behind the rear seat sealed and ported box
- Wrangler 4-door, soft top — behind the rear seat sealed and ported box
- Silverado / Sierra Crew Cab — under the rear seat sealed and ported box
- Spare tire well sealed box
- Polaris RZR / Ranger — under the seat sealed box
- Can-Am — under the seat sealed box
- FJ Cruiser — behind the rear seat sealed and ported box
- El Camino 1978–87 — behind the seat sealed and ported box
- Cherokee XJ — cargo area, spare moved out sealed and ported box
- Excursion — behind the third row sealed and ported box
- Mustang 2015–2023 coupe — trunk sealed and ported box
- Challenger / Charger — trunk sealed and ported box
- Tesla Model 3 — well under the trunk floor sealed and ported box
- Club Car Precedent — under the rear seat sealed and ported box
The spec sheet's Sd of 78.5 in² is the area of a 10″ circle, not the cone's radiating area — not used.
Cone area (Sd) calculated from Fs, Vas and Mms: 50.9 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
Voice coil versions
The same sub with different voice coils: the parameters are nearly the same — pick by your amp and wiring.
| Model | Voice coils | Re | Qes | Vas | Sealed | Ported |
|---|---|---|---|---|---|---|
| Sundown Audio Ev4-10 D2 | dual 2 Ω | 2 Ω | 0.38 | 0.69 ft³ | 0.46 ft³ | 1.02 ft³ · 35 Hz |
| Sundown Audio Ev4-10 D4 | dual 4 Ω | 3.05 Ω | 0.43 | 0.66 ft³ | 0.46 ft³ | 1.02 ft³ · 35 Hz |
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 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
- Sundown Audio NSv5-10 D1 10″ · dual 1 Ω
- Sundown Audio NSv5-10 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.
- Zetta Audio S-10 700 0.46 ft³ sealed · 0.78 ft³ ported
- SoundQubed HDS2.210 D2 0.51 ft³ sealed · 1.52 ft³ ported
- SoundQubed HDS2.210 D4 0.51 ft³ sealed · 1.52 ft³ ported
- Dayton Audio SS10-22 0.53 ft³ sealed · 0.85 ft³ ported
- Audiobahn AW1000X 0.49 ft³ sealed · 1.55 ft³ ported
- Kicker CompVX 10" 2-Ohm DVC (50CVX102) 0.49 ft³ sealed · 1.66 ft³ ported
FAQ
What box does the Sundown Audio Ev4-10 D4 need?
Recommended net volume: 0.46 ft³ sealed, 1.02 ft³ ported tuned to 35 Hz — for one sub in a sedan at 750 W. Fit the box to your space and amp in the free calculator, with plans and a cut sheet.
What are the Sundown Audio Ev4-10 D4 Thiele/Small specs?
Fs 33.5 Hz, Qts 0.39, Vas 0.66 ft³, Xmax 0.55″, Sd 50.9 in².
What is the Sundown Audio Ev4-10 D4 mounting depth?
Mounting depth is 5 5/8″, cutout diameter 9 3/16″. The inside depth of the box must exceed the mounting depth by at least 1″.
How much power does the Sundown Audio Ev4-10 D4 handle and how do I wire it?
RMS power rating: 750 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.
Is the Sundown Audio Ev4-10 D4 better sealed or ported?
EBP 78: both work — sealed 0.46 ft³ is tighter and smaller, ported 1.02 ft³ tuned to 35 Hz is deeper and louder.
What port does the Sundown Audio Ev4-10 D4 need?
For the 1.02 ft³ ported box tuned to 35 Hz: 2 round ports Ø2 1/2″, 19 3/8″ long, area 10 in²; or a round port Ø3 9/16″, ≈ 18 5/8″ long. Port air speed at 750 W: 159 ft/s.
What box do two Sundown Audio Ev4-10 D4 subs need?
Two subs need twice the volume: 0.92 ft³ sealed, or 2.05 ft³ ported at the same 35 Hz tuning with twice the port area. One shared chamber or one per sub — whatever fits your vehicle.