Elemental Designs 13Ov.2
12″ subwoofer · DVC · 600 W RMS
The Elemental Designs 13Ov.2 is a 12″ subwoofer. With Qts 0.27 and EBP 70 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 |
- Fs, Vas and Sd don't match the moving mass of 195 g (they give 137 g) — one of the spec sheet values is probably wrong.
Recommended box
For a sedan, one sub, 600 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 · 0.79 |
|---|---|
| Fc | 61 Hz |
| F3 (−3 dB, no cabin gain) | 59 Hz |
| Example box (outside) | 14 3/16″ × 14 3/16″ × 11 9/16″ |
Ported
deeper, louder| Tuning (Fb) | 30 Hz |
|---|---|
| Port | slot 1 15/16 × 14 5/16″, 29″ long |
| Port velocity at 600 W | 62 ft/s |
| F3 (−3 dB, no cabin gain) | 32 Hz |
| Example box (outside) | 31 1/2″ × 15 3/4″ × 14 3/8″ |
Deeper: 2.30 ft³ (65 L) tuned to 31 Hz, 31 1/2″ × 15 3/4″ × 13 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 | 12″ |
|---|---|
| Voice coils | DVC |
| RMS power | 600 W |
| Fs | 21 Hz |
| Qts | 0.27 |
| Qes | 0.3 |
| Qms | 3.3 |
| Vas | 6.22 ft³ |
| Re (one coil) | 4.15 Ω |
|---|---|
| Sd | 84.5 in² |
| Xmax | 0.72″ |
| Vd | 60.9 in³ calc. |
| Mms | 137 g calc. |
| BL | 15.8 T·m calc. |
| EBP | 70 — sealed or ported calc. |
| Sensitivity, 1 W / 1 m | 89.4 dB calc. |
Mounting dimensions
| Cutout diameter | 11″ |
|---|---|
| Mounting depth | 6 5/8″ |
| Overall diameter | 12 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.
- Bronco 4-door — behind the rear seat sealed 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 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
- Club Car Precedent — under the rear seat sealed 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
- web.archive.org/web/20101230195432/http://www.edesignaudio.com/product_info.php?
- web.archive.org/web/20041212080702/http://www.edesignaudio.com/13ov2_spec.htm
Other Elemental Designs 12″ models
- Elemental Designs 13Kv.2 12″ · DVC
- Elemental Designs e3.12 12″ · dual 2 Ω
- Elemental Designs e5.12 12″ · dual 2 Ω
- Elemental Designs E12a (2002) 12″ · DVC
- Elemental Designs e12A (2003) 12″
- Elemental Designs E12k (2002) 12″
- Elemental Designs e12K (2003) 12″ · DVC
- Elemental Designs e12kd4 12″ · DVC
- Elemental Designs E12o 12″ · DVC
- Elemental Designs e12O.14 12″ · 4 Ω
- Elemental Designs e12O.44 12″ · dual 4 Ω
Similar 12″ subwoofers from other brands
Close in Fs, Qts and Vas — a box of similar volume will suit them.
- Orion 2NT 12 SVC 0.71 ft³ sealed · 2.30 ft³ ported
- Audiobahn AWC12D 1.27 ft³ sealed · 2.26 ft³ ported
- Orion Xtreme 12 DVC 1.17 ft³ sealed · 2.30 ft³ ported
- Ground Zero GZHW 12SPL-D2 FLAT (2x2 Ohm) 0.78 ft³ sealed · 2.51 ft³ ported
- Kenwood KFC-XW1241HP 0.71 ft³ sealed · 1.34 ft³ ported
- SPL Dynamics V-12S4 0.81 ft³ sealed · 2.44 ft³ ported
FAQ
What box does the Elemental Designs 13Ov.2 need?
Recommended net volume: 0.85 ft³ sealed, 2.51 ft³ ported tuned to 30 Hz — for one sub in a sedan at 600 W. Fit the box to your space and amp in the free calculator, with plans and a cut sheet.
What are the Elemental Designs 13Ov.2 Thiele/Small specs?
Fs 21 Hz, Qts 0.27, Vas 6.22 ft³, Xmax 0.72″, Sd 84.5 in².
What is the Elemental Designs 13Ov.2 mounting depth?
Mounting depth is 6 5/8″, cutout diameter 11″. The inside depth of the box must exceed the mounting depth by at least 1″.
How much power does the Elemental Designs 13Ov.2 handle and how do I wire it?
RMS power rating: 600 W. Wiring for several subs and amp power — in the wiring calculator.
Is the Elemental Designs 13Ov.2 better sealed or ported?
EBP 70: both work — sealed 0.85 ft³ is tighter and smaller, ported 2.51 ft³ tuned to 30 Hz is deeper and louder.
What port does the Elemental Designs 13Ov.2 need?
For the 2.51 ft³ ported box tuned to 30 Hz: slot 1 15/16 × 14 5/16″, 29″ long, area 28.2 in²; or a round port Ø6″, ≈ 29″ long. Port air speed at 600 W: 62 ft/s.
What box do two Elemental Designs 13Ov.2 subs need?
Two subs need twice the volume: 1.70 ft³ sealed, or 5.01 ft³ ported at the same 30 Hz tuning with twice the port area. One shared chamber or one per sub — whatever fits your vehicle.