Elemental Designs e15K (2003)
15″ subwoofer · DVC · 400 W RMS
| Source | web.archive.org · manufacturer data |
|---|---|
| Checked against source | October 2026 |
| Thiele/Small parameters | complete |
| Mounting dimensions | 2 of 4 — missing: frame outer diameter, magnet diameter; the designer will use an estimate |
Recommended box
For a sedan, one sub, 400 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 | 46 Hz |
| F3 (−3 dB, no cabin gain) | 44 Hz |
| Example box (outside) | 17 5/16″ × 17 5/16″ × 15 7/16″ |
Ported
deeper, louder| Tuning (Fb) | 30 Hz |
|---|---|
| Port | slot 1 3/4 × 16 11/16″, 18 3/4″ long |
| Port velocity at 400 W | 61 ft/s |
| F3 (−3 dB, no cabin gain) | 29 Hz |
| Example box (outside) | 31 1/2″ × 18 1/8″ × 16 7/16″ |
Deeper: 4.94 ft³ (140 L) tuned to 27 Hz, 31 1/2″ × 18 1/8″ × 20 11/16″ 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 | 15″ |
|---|---|
| Voice coils | DVC |
| RMS power | 400 W |
| Fs | 23 Hz |
| Qts | 0.40 |
| Qes | 0.43 |
| Qms | 5.7 |
| Vas | 5.65 ft³ |
| Re (one coil) | 0.88 Ω |
|---|---|
| Sd | 127.9 in² |
| Xmax | 0.62″ |
| Vd | 79.5 in³ calc. |
| Mms | 289 g calc. |
| BL | 9.2 T·m calc. |
| EBP | 53 — sealed or ported calc. |
| Sensitivity, 1 W / 1 m | 88.6 dB calc. |
Mounting dimensions
| Cutout diameter | 14″ |
|---|---|
| Mounting depth | 7 3/16″ |
“≈” 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/20041116132955/http://www.edesignaudio.com/archive/2003KSeri
- web.archive.org/web/20030425032141/http://edesignaudio.com/ep/specsold/03kts.htm
Other Elemental Designs 15″ models
- Elemental Designs 15A.22 15″ · dual 2 Ω
- Elemental Designs 16Ov.2 15″ · dual 2 Ω
- Elemental Designs E15a 15″ · DVC
- Elemental Designs e15kd4 15″ · DVC
- Elemental Designs E15o 15″ · DVC
- Elemental Designs e15SP4 15″
Similar 15″ subwoofers from other brands
Close in Fs, Qts and Vas — a box of similar volume will suit them.
- Lanzar HRWDC15 2.12 ft³ sealed · 3.67 ft³ ported
- Ground Zero GZRW 15D2 (2x2 Ohm) 2.51 ft³ sealed · 3.67 ft³ ported
- Ground Zero GZHW 38X (2x2 Ohm) 2.12 ft³ sealed · 3.67 ft³ ported
- Dayton Audio MX15-22 1.91 ft³ sealed · 3.78 ft³ ported
- RE Audio SRX15 D4 2.58 ft³ sealed · 3.71 ft³ ported
- PowerBass M-1504 2.75 ft³ sealed · 3.57 ft³ ported
FAQ
What box does the Elemental Designs e15K (2003) need?
Recommended net volume: 1.87 ft³ sealed, 3.78 ft³ ported tuned to 30 Hz — for one sub in a sedan at 400 W. Fit the box to your space and amp in the free calculator, with plans and a cut sheet.
What are the Elemental Designs e15K (2003) Thiele/Small specs?
Fs 23 Hz, Qts 0.40, Vas 5.65 ft³, Xmax 0.62″, Sd 127.9 in².
What is the Elemental Designs e15K (2003) mounting depth?
Mounting depth is 7 3/16″, cutout diameter 14″. The inside depth of the box must exceed the mounting depth by at least 1″.
How much power does the Elemental Designs e15K (2003) handle and how do I wire it?
RMS power rating: 400 W. Wiring for several subs and amp power — in the wiring calculator.