Elemental Designs 13Av.2
13″ subwoofer · DVC · 1,200 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 |
- Fs, Vas and Sd don't match the moving mass of 257 g (they give 367 g) — one of the spec sheet values is probably wrong.
Recommended box
For a sedan, one sub, 1,200 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 · 0.74 |
|---|---|
| Fc | 38 Hz |
| F3 (−3 dB, no cabin gain) | 39 Hz |
| Example box (outside) | 15 3/8″ × 15 3/8″ × 12 9/16″ |
Ported
deeper, louder| Tuning (Fb) | 30 Hz |
|---|---|
| Port | slot 1 3/4 × 14 3/4″, 44 9/16″ long |
| Port velocity at 1,200 W | 79 ft/s |
| F3 (−3 dB, no cabin gain) | 28 Hz |
| Example box (outside) | 20 9/16″ × 16 1/8″ × 17 5/16″ |
Deeper: 3.00 ft³ (85 L) tuned to 25 Hz, 31 1/2″ × 16 1/8″ × 21″ 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 | 13″ |
|---|---|
| Voice coils | DVC |
| RMS power | 1,200 W |
| Fs | 23.3 Hz |
| Qts | 0.45 |
| Qes | 0.48 |
| Qms | 7.48 |
| Vas | 1.97 ft³ |
| Re (one coil) | 2.81 Ω |
|---|---|
| Sd | 86.2 in² |
| Xmax | 1.13″ |
| Vd | 97.7 in³ calc. |
| Mms | 367 g calc. |
| BL | 17.7 T·m calc. |
| EBP | 49 — suits sealed calc. |
| Sensitivity, 1 W / 1 m | 83.7 dB calc. |
Mounting dimensions
| Cutout diameter | 12″ |
|---|---|
| Mounting depth | 10 1/16″ |
| Overall diameter | 13 1/2″ |
“≈” 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/20090424190518/http://www.edesignaudio.com/pdf/13Av_2.pdf
- web.archive.org/web/20101231043949/http://www.edesignaudio.com/product_info.php?
Similar 13″ subwoofers from other brands
Close in Fs, Qts and Vas — a box of similar volume will suit them.
- Focal Performance Sub P 33 V2 (DVC 4+4 ohm) 1.87 ft³ sealed · 2.15 ft³ ported
- Focal Utopia Be 33 WX2 (SVC 4 ohm) 0.78 ft³ sealed · 2.54 ft³ ported
- Soundstream STEALTH-13 1.94 ft³ sealed · 1.38 ft³ ported
- Focal K2 Power 33 KX (DVC 2+2 ohm) 1.73 ft³ sealed · 1.20 ft³ ported
FAQ
What box does the Elemental Designs 13Av.2 need?
Recommended net volume: 1.15 ft³ sealed, 1.59 ft³ ported tuned to 30 Hz — for one sub in a sedan at 1,200 W. Fit the box to your space and amp in the free calculator, with plans and a cut sheet.
What are the Elemental Designs 13Av.2 Thiele/Small specs?
Fs 23.3 Hz, Qts 0.45, Vas 1.97 ft³, Xmax 1.13″, Sd 86.2 in².
What is the Elemental Designs 13Av.2 mounting depth?
Mounting depth is 10 1/16″, cutout diameter 12″. The inside depth of the box must exceed the mounting depth by at least 1″.
How much power does the Elemental Designs 13Av.2 handle and how do I wire it?
RMS power rating: 1,200 W. Wiring for several subs and amp power — in the wiring calculator.