Polk Audio SR104DVC
10″ subwoofer · dual 4 Ω · 700 W RMS
The Polk Audio SR104DVC is a 10″ subwoofer. With Qts 0.56 and EBP 60 it works both sealed and ported: sealed is tighter and smaller, ported is deeper and louder.
| 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, 700 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 | 52 Hz |
| F3 (−3 dB, no cabin gain) | 48 Hz |
| Example box (outside) | 12 3/16″ × 12 3/16″ × 13 3/8″ |
Ported
deeper, louder| Tuning (Fb) | 42 Hz |
|---|---|
| Port | 2 round ports Ø2 1/2″, 16″ long |
| Port velocity at 700 W | 134 ft/s |
| F3 (−3 dB, no cabin gain) | 38 Hz |
| Example box (outside) | 16 11/16″ × 15 3/4″ × 9 7/16″ |
At 700 W this example’s port will be noisy: air speed 134 ft/s, while the limit is 82 ft/s. It stays quiet up to about 260 W. Full power needs a port of at least 16.3 in², which means a bigger box than this example — size it in the designer.
Open ported box in designerDeeper: 2.08 ft³ (59 L) tuned to 29 Hz, 31 1/2″ × 15 3/4″ × 14 9/16″ 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 | 700 W |
| Fs | 36 Hz |
| Qts | 0.56 |
| Qes | 0.6 |
| Qms | 8 |
| Vas | 0.78 ft³ |
| Re (one coil) | 3.5 Ω |
|---|---|
| Sd | 53.7 in² |
| Xmax | 0.64″ |
| Vd | 34.5 in³ calc. |
| Mms | 151 g calc. |
| BL | 14.1 T·m calc. |
| EBP | 60 — sealed or ported calc. |
| Sensitivity, 1 W / 1 m | 84.3 dB calc. |
Mounting dimensions
| Cutout diameter | 9 1/8″ |
|---|---|
| Mounting depth | 7″ |
| Overall diameter | 10 1/4″ |
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
“≈” 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
Other Polk Audio 10″ models
- Polk Audio db104 10″ · 4 Ω
- Polk Audio db104DVC 10″ · dual 4 Ω
- Polk Audio db1040 10″ · 4 Ω
- Polk Audio db1040DVC 10″ · dual 4 Ω
- Polk Audio dX10-4 10″ · 4 Ω
- Polk Audio dX10-8 10″ · 8 Ω
- Polk Audio DXi104 DVC 10″ · dual 4 Ω
- Polk Audio DXi104 SVC 10″ · 4 Ω
- Polk Audio EX10 (EX Series II) 10″ · 4 Ω
- Polk Audio GXR104 10″ · 4 Ω
- Polk Audio MM100-4 10″ · 4 Ω
- Polk Audio MM104 (Polk/MOMO) 10″ · 4 Ω
Similar 10″ subwoofers from other brands
Close in Fs, Qts and Vas — a box of similar volume will suit them.
- Soundstream PCW-10 0.74 ft³ sealed · 0.85 ft³ ported
- Audiobahn AW101T 0.74 ft³ sealed · 0.78 ft³ ported
- Ground Zero GZPW 10SQX (2x2 Ohm) 0.92 ft³ sealed · 0.85 ft³ ported
- URAL Molot 10 (2+2) 0.71 ft³ sealed · 0.85 ft³ ported
- CT Sounds BIO-10 D2 0.74 ft³ sealed · 0.74 ft³ ported
- ARC Audio Black 10D4 V2 0.67 ft³ sealed · 0.85 ft³ ported
FAQ
What box does the Polk Audio SR104DVC need?
Recommended net volume: 0.74 ft³ sealed, 0.85 ft³ ported tuned to 42 Hz — for one sub in a sedan at 700 W. Fit the box to your space and amp in the free calculator, with plans and a cut sheet.
What are the Polk Audio SR104DVC Thiele/Small specs?
Fs 36 Hz, Qts 0.56, Vas 0.78 ft³, Xmax 0.64″, Sd 53.7 in².
What is the Polk Audio SR104DVC mounting depth?
Mounting depth is 7″, cutout diameter 9 1/8″. The inside depth of the box must exceed the mounting depth by at least 1″.
How much power does the Polk Audio SR104DVC handle and how do I wire it?
RMS power rating: 700 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 Polk Audio SR104DVC better sealed or ported?
EBP 60: both work — sealed 0.74 ft³ is tighter and smaller, ported 0.85 ft³ tuned to 42 Hz is deeper and louder.
What port does the Polk Audio SR104DVC need?
For the 0.85 ft³ ported box tuned to 42 Hz: 2 round ports Ø2 1/2″, 16″ long, area 10 in²; or a round port Ø3 9/16″, ≈ 15 1/4″ long. Port air speed at 700 W: 134 ft/s.
What box do two Polk Audio SR104DVC subs need?
Two subs need twice the volume: 1.48 ft³ sealed, or 1.70 ft³ ported at the same 42 Hz tuning with twice the port area. One shared chamber or one per sub — whatever fits your vehicle.