Sky High Car Audio FE-15 D2
15″ subwoofer · dual 2 Ω · 700 W RMS
| Source | skyhighcaraudio.com · 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) | Boomy, with a bump · 1.26 |
|---|---|
| Fc | 43 Hz |
| F3 (−3 dB, no cabin gain) | 33 Hz |
| Example box (outside) | 31 1/2″ × 17 11/16″ × 11 7/8″ |
Ported
deeper, louder| Tuning (Fb) | 33 Hz |
|---|---|
| Port | slot 1 9/16 × 16 5/16″, 22 7/8″ long |
| Port velocity at 700 W | 57 ft/s |
| F3 (−3 dB, no cabin gain) | 32 Hz |
| Example box (outside) | 31 1/2″ × 17 11/16″ × 11 7/8″ |
Deeper: 4.73 ft³ (134 L) tuned to 33 Hz, 31 1/2″ × 17 11/16″ × 20 7/16″ 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 | dual 2 Ω |
| RMS power | 700 W |
| Fs | 30.2 Hz |
| Qts | 0.88 |
| Qes | 1.03 |
| Qms | 5.98 |
| Vas | 2.92 ft³ |
| Re (one coil) | 1.95 Ω |
|---|---|
| Sd | 122.2 in² |
| Xmax | 0.59″ |
| Vd | 72.2 in³ calc. |
| Mms | 296 g calc. |
| BL | 10.3 T·m calc. |
| EBP | 29 — suits sealed calc. |
| Sensitivity, 1 W / 1 m | 85.5 dB calc. |
Mounting dimensions
| Cutout diameter | 13 9/16″ |
|---|---|
| Mounting depth | 8 1/16″ |
| Overall diameter | 15 3/8″ |
Cone area (Sd) calculated from Fs, Vas and Mms: 122.2 in².
“≈” 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 Sky High Car Audio 15″ models
- Sky High Car Audio BMX-15 D1 15″ · dual 1 Ω
- Sky High Car Audio BMX-15 D2 15″ · dual 2 Ω
- Sky High Car Audio FE-15 D4 15″ · dual 4 Ω
- Sky High Car Audio FEX-15 D2 15″ · dual 2 Ω
- Sky High Car Audio FEX-15 D4 15″ · dual 4 Ω
- Sky High Car Audio FMX-15 D1 15″ · dual 1 Ω
- Sky High Car Audio FMX-15 D2 15″ · dual 2 Ω
- Sky High Car Audio FXB-15 D2 15″ · dual 2 Ω
- Sky High Car Audio FXB-15 D4 15″ · dual 4 Ω
- Sky High Car Audio FXXL-15 D1 15″ · dual 1 Ω
- Sky High Car Audio FXXL-15 D2 15″ · dual 2 Ω
Similar 15″ subwoofers from other brands
Close in Fs, Qts and Vas — a box of similar volume will suit them.
- DL Audio Gryphon Lite 15 V.3 (2+2) 2.83 ft³ sealed · 2.58 ft³ ported
- DL Audio Gryphon Lite 15 V.3 SE (2+2) 2.83 ft³ sealed · 2.58 ft³ ported
- Lanzar OPTI1522D 2.83 ft³ sealed · 2.26 ft³ ported
- Audiobahn AW151T 2.75 ft³ sealed · 2.12 ft³ ported
- Hertz Energy ES 380.5 (SVC 4 ohm) 2.86 ft³ sealed · 2.79 ft³ ported
- Quantum Audio Q2000/15D 2.72 ft³ sealed · 2.30 ft³ ported
FAQ
What box does the Sky High Car Audio FE-15 D2 need?
Recommended net volume: 2.79 ft³ sealed, 2.33 ft³ ported tuned to 33 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 Sky High Car Audio FE-15 D2 Thiele/Small specs?
Fs 30.2 Hz, Qts 0.88, Vas 2.92 ft³, Xmax 0.59″, Sd 122.2 in².
What is the Sky High Car Audio FE-15 D2 mounting depth?
Mounting depth is 8 1/16″, cutout diameter 13 9/16″. The inside depth of the box must exceed the mounting depth by at least 1″.
How much power does the Sky High Car Audio FE-15 D2 handle and how do I wire it?
RMS power rating: 700 W. Dual 2 Ω voice coils: series gives 4 Ω, parallel gives 1 Ω at the amp. Wiring for several subs and amp power — in the wiring calculator.