Audiopipe TXX-APC-15
15″ subwoofer · dual 4 Ω · 1,000 W RMS
| Source | cdn.shopify.com, audiopipe.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 |
- The spec sheet's Qts 0.5 doesn't match its Qes and Qms (they give 0.58).
- Fs, Vas and Sd don't match the moving mass of 411 g (they give 527 g) — one of the spec sheet values is probably wrong.
Recommended box
For a sedan, one sub, 1,000 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) | Tight and punchy · 0.80 |
|---|---|
| Fc | 44 Hz |
| F3 (−3 dB, no cabin gain) | 41 Hz |
| Example box (outside) | 16 15/16″ × 16 15/16″ × 16 3/8″ |
Ported
deeper, louder| Tuning (Fb) | 34 Hz |
|---|---|
| Port | slot 2 3/16 × 16 5/16″, 33 5/8″ long |
| Port velocity at 1,000 W | 60 ft/s |
| F3 (−3 dB, no cabin gain) | 30 Hz |
| Example box (outside) | 31 1/2″ × 17 11/16″ × 12 9/16″ |
Deeper: 5.12 ft³ (145 L) tuned to 25 Hz, 31 1/2″ × 17 11/16″ × 24 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 | 15″ |
|---|---|
| Voice coils | dual 4 Ω |
| RMS power | 1,000 W |
| Fs | 32 Hz |
| Qts | 0.58 |
| Qes | 0.75 |
| Qms | 2.6 |
| Vas | 1.70 ft³ |
| Re (one coil) | 3.6 Ω |
|---|---|
| Sd | 131.8 in² |
| Xmax | 0.26″ |
| Vd | 33.7 in³ calc. |
| Mms | 527 g calc. |
| BL | 22.6 T·m calc. |
| EBP | 43 — suits sealed calc. |
| Sensitivity, 1 W / 1 m | 85.2 dB calc. |
Mounting dimensions
| Cutout diameter | 13 13/16″ |
|---|---|
| Mounting depth | 8 3/16″ |
| Overall diameter | 15 3/4″ |
“≈” 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
- cdn.shopify.com/s/files/1/0051/8478/2371/files/TXX-APC_manual.pdf?v=1691594746
- audiopipe.com/pages/manuals
Other Audiopipe 15″ models
- Audiopipe TS-AR15 15″ · 4 Ω
- Audiopipe TS-PP3-15-D4 15″ · dual 4 Ω
- Audiopipe TXX-BD1-15 15″ · dual 4 Ω
- Audiopipe TXX-BD2-15 15″ · dual 4 Ω
- Audiopipe TXX-BD3-15 15″ · dual 4 Ω
- Audiopipe TXX-BD3-15D2 15″ · dual 2 Ω
- Audiopipe TXX-BD4-15 15″ · dual 4 Ω
Similar 15″ subwoofers from other brands
Close in Fs, Qts and Vas — a box of similar volume will suit them.
- Swat EXE-P15D1 1.70 ft³ sealed · 1.98 ft³ ported
- Rockford Fosgate Power T2D415 2.58 ft³ sealed · 2.47 ft³ ported
- Rockford Fosgate Power T2D215 1.34 ft³ sealed · 2.47 ft³ ported
- Avatar Doomsday 15 D2 1.48 ft³ sealed · 1.98 ft³ ported
- Kicker Solo-Baric L7XS 15" 2-Ohm DVC (52L7XS152) 1.77 ft³ sealed · 2.37 ft³ ported
- American Bass XD-1544 2.37 ft³ sealed · 2.01 ft³ ported
FAQ
What box does the Audiopipe TXX-APC-15 need?
Recommended net volume: 1.91 ft³ sealed, 2.12 ft³ ported tuned to 34 Hz — for one sub in a sedan at 1,000 W. Fit the box to your space and amp in the free calculator, with plans and a cut sheet.
What are the Audiopipe TXX-APC-15 Thiele/Small specs?
Fs 32 Hz, Qts 0.58, Vas 1.70 ft³, Xmax 0.26″, Sd 131.8 in².
What is the Audiopipe TXX-APC-15 mounting depth?
Mounting depth is 8 3/16″, cutout diameter 13 13/16″. The inside depth of the box must exceed the mounting depth by at least 1″.
How much power does the Audiopipe TXX-APC-15 handle and how do I wire it?
RMS power rating: 1,000 W. Dual 4 Ω voice coils: series gives 8 Ω, parallel gives 2 Ω at the amp. Wiring for several subs and amp power — in the wiring calculator.