Elemental Designs e5.12
12″ subwoofer · dual 2 Ω
| 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, 300 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 · 0.81 |
|---|---|
| Fc | 43 Hz |
| F3 (−3 dB, no cabin gain) | 41 Hz |
| Example box (outside) | 14 3/16″ × 14 3/16″ × 10 13/16″ |
Ported
deeper, louder| Tuning (Fb) | 30 Hz |
|---|---|
| Port | slot 1 9/16 × 14 5/16″, 22 13/16″ long |
| Port velocity at 300 W | 64 ft/s |
| F3 (−3 dB, no cabin gain) | 26 Hz |
| Example box (outside) | 31 1/2″ × 15 3/4″ × 13 1/2″ |
Deeper: 2.58 ft³ (73 L) tuned to 25 Hz, 31 1/2″ × 15 3/4″ × 14 5/8″ 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 | dual 2 Ω |
| RMS power | — |
| Fs | 21 Hz |
| Qts | 0.40 |
| Qes | 0.42 |
| Qms | 7 |
| Vas | 2.44 ft³ |
| Re (one coil) | 2.25 Ω |
|---|---|
| Sd | 84.5 in² |
| Xmax | 1.00″ |
| Vd | 84.5 in³ calc. |
| Mms | 350 g calc. |
| BL | 15.7 T·m calc. |
| EBP | 50 — sealed or ported calc. |
| Sensitivity, 1 W / 1 m | 83.8 dB calc. |
Mounting dimensions
| Cutout diameter | 11 1/8″ |
|---|---|
| Mounting depth | 6 5/8″ |
| Overall diameter | 12 1/2″ |
Judging by its value, the published Re is for both coils in series — converted to per coil.
“≈” 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 Elemental Designs 12″ models
- Elemental Designs 13Kv.2 12″ · DVC
- Elemental Designs 13Ov.2 12″ · DVC
- Elemental Designs e3.12 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.
- Dayton Audio RSS315HO-44 0.71 ft³ sealed · 1.38 ft³ ported
- Hertz Mille Pro MPS 300 S4 (shallow, SVC 4 ohm) 0.85 ft³ sealed · 1.77 ft³ ported
- Mac Audio Maximus Reference 12 (DVC) 1.31 ft³ sealed · 2.26 ft³ ported
- Audiobahn ALUM12X 1.06 ft³ sealed · 2.26 ft³ ported
- Hertz Mille Pro MP 300 D4.3 (DVC 4+4 ohm) 0.99 ft³ sealed · 1.45 ft³ ported
- Infinity Reference 1260W 0.88 ft³ sealed · 2.44 ft³ ported
FAQ
What box does the Elemental Designs e5.12 need?
Recommended net volume: 0.78 ft³ sealed, 2.51 ft³ ported tuned to 30 Hz — for one sub in a sedan at 300 W. Fit the box to your space and amp in the free calculator, with plans and a cut sheet.
What are the Elemental Designs e5.12 Thiele/Small specs?
Fs 21 Hz, Qts 0.40, Vas 2.44 ft³, Xmax 1.00″, Sd 84.5 in².
What is the Elemental Designs e5.12 mounting depth?
Mounting depth is 6 5/8″, cutout diameter 11 1/8″. The inside depth of the box must exceed the mounting depth by at least 1″.