Ascendant Audio TEAM 15 D2
15″ subwoofer · dual 2 Ω · 4,000 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 |
Recommended box
For a sedan, one sub, 4,000 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) | Dry and tight · 0.44 |
|---|---|
| Fc | 46 Hz |
| F3 (−3 dB, no cabin gain) | 85 Hz |
| Example box (outside) | 17 5/16″ × 17 5/16″ × 14 11/16″ |
Ported
deeper, louder| Tuning (Fb) | 34 Hz |
|---|---|
| Port | slot 5 7/8 × 16 11/16″, 53 1/4″ long |
| Port velocity at 4,000 W | 76 ft/s |
| F3 (−3 dB, no cabin gain) | 31 Hz |
| Example box (outside) | 31 1/2″ × 18 1/8″ × 26 1/16″ |
Deeper: 2.40 ft³ (68 L) tuned to 30 Hz, 25 5/8″ × 18 1/8″ × 19 1/2″ 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 | 4,000 W |
| Fs | 32.6 Hz |
| Qts | 0.32 |
| Qes | 0.33 |
| Qms | 8.43 |
| Vas | 1.68 ft³ |
| Re (one coil) | 1.35 Ω |
|---|---|
| Sd | 125.6 in² |
| Xmax | 1.30″ |
| Vd | 163.1 in³ calc. |
| Mms | 464 g calc. |
| BL | 19.7 T·m calc. |
| EBP | 99 — sealed or ported calc. |
| Sensitivity, 1 W / 1 m | 89 dB calc. |
Mounting dimensions
| Cutout diameter | 14 1/8″ |
|---|---|
| Mounting depth | 12 1/4″ |
| Overall diameter | 15 5/8″ |
“≈” 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/20150303063436/http://ascendantaudio.com:80/products/team/
- web.archive.org/web/20170101010553/http://ascendantaudio.com/products/team/
Other Ascendant Audio 15″ models
- Ascendant Audio Chaos 15 D1 15″ · dual 1 Ω
- Ascendant Audio Chaos 15 D2 15″ · dual 2 Ω
- Ascendant Audio Havoc 15 D1 15″ · dual 1 Ω
- Ascendant Audio Havoc 15 D2 15″ · dual 2 Ω
- Ascendant Audio Mayhem 15 D1 15″ · dual 1 Ω
- Ascendant Audio Mayhem 15 D2 15″ · dual 2 Ω
- Ascendant Audio SMD Signature 15 D1 15″ · dual 1 Ω
- Ascendant Audio SMD Signature 15 D2 15″ · dual 2 Ω
- Ascendant Audio SMD V2 15 D1 15″ · dual 1 Ω
- Ascendant Audio SMD V2 15 D2 15″ · dual 2 Ω
- Ascendant Audio TEAM 15 D1 15″ · dual 1 Ω
Similar 15″ subwoofers from other brands
Close in Fs, Qts and Vas — a box of similar volume will suit them.
- SPL Dynamics SPL-380D1A 1.31 ft³ sealed · 4.20 ft³ ported
- Edge EDS15D2-E7 1.06 ft³ sealed · 3.46 ft³ ported
- Fi Audio NEO 4.11 15 D1 1.59 ft³ sealed · 3.71 ft³ ported
- Fi Audio NEO 4.11 15 D2 1.59 ft³ sealed · 3.71 ft³ ported
- Edge EDS15D1-E7 1.06 ft³ sealed · 3.46 ft³ ported
- Fi Audio MT 15 D1 1.59 ft³ sealed · 3.71 ft³ ported
FAQ
What box does the Ascendant Audio TEAM 15 D2 need?
Recommended net volume: 1.77 ft³ sealed, 3.71 ft³ ported tuned to 34 Hz — for one sub in a sedan at 4,000 W. Fit the box to your space and amp in the free calculator, with plans and a cut sheet.
What are the Ascendant Audio TEAM 15 D2 Thiele/Small specs?
Fs 32.6 Hz, Qts 0.32, Vas 1.68 ft³, Xmax 1.30″, Sd 125.6 in².
What is the Ascendant Audio TEAM 15 D2 mounting depth?
Mounting depth is 12 1/4″, cutout diameter 14 1/8″. The inside depth of the box must exceed the mounting depth by at least 1″.
How much power does the Ascendant Audio TEAM 15 D2 handle and how do I wire it?
RMS power rating: 4,000 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.