Audiopipe TXX-BD1-12
12″ subwoofer · dual 4 Ω · 600 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 |
- The spec sheet's Qts 0.49 doesn't match its Qes and Qms (they give 0.55).
- Fs, Vas and Sd don't match the moving mass of 213 g (they give 268 g) — one of the spec sheet values is probably wrong.
Recommended box
For a sedan, one sub, 600 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 | 55 Hz |
| F3 (−3 dB, no cabin gain) | 52 Hz |
| Example box (outside) | 14 9/16″ × 14 9/16″ × 10 15/16″ |
Ported
deeper, louder| Tuning (Fb) | 34 Hz |
|---|---|
| Port | slot 1 9/16 × 14 5/16″, 36″ long |
| Port velocity at 600 W | 58 ft/s |
| F3 (−3 dB, no cabin gain) | 32 Hz |
| Example box (outside) | 31 1/2″ × 15 3/4″ × 9 11/16″ |
Deeper: 2.54 ft³ (72 L) tuned to 30 Hz, 31 1/2″ × 15 3/4″ × 14 15/16″ 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 | 12″ |
|---|---|
| Voice coils | dual 4 Ω |
| RMS power | 600 W |
| Fs | 38 Hz |
| Qts | 0.55 |
| Qes | 0.73 |
| Qms | 2.3 |
| Vas | 0.92 ft³ |
| Re (one coil) | 3.6 Ω |
|---|---|
| Sd | 82.2 in² |
| Xmax | 0.17″ |
| Vd | 13.9 in³ calc. |
| Mms | 268 g calc. |
| BL | 17.8 T·m calc. |
| EBP | 52 — sealed or ported calc. |
| Sensitivity, 1 W / 1 m | 84.9 dB calc. |
Mounting dimensions
| Cutout diameter | 11 7/16″ |
|---|---|
| Mounting depth | 5 7/8″ |
| Overall diameter | 12 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
Other Audiopipe 12″ models
- Audiopipe TS-FA1200 12″ · dual 4 Ω
- Audiopipe TXX-APC-12 12″ · dual 4 Ω
- Audiopipe TXX-BD2-12 12″ · dual 4 Ω
- Audiopipe TXX-BD3-12 12″ · dual 4 Ω
- Audiopipe TXX-BD3-12D2 12″ · dual 2 Ω
- Audiopipe TXX-BD4-12 12″ · dual 4 Ω
- Audiopipe TXX-BDC4-12 12″ · dual 4 Ω
Similar 12″ subwoofers from other brands
Close in Fs, Qts and Vas — a box of similar volume will suit them.
- MTX Audio T9512-44 0.92 ft³ sealed · 1.31 ft³ ported
- Kicker CompQ 12" 4-Ohm DVC (42CWQ124) 1.09 ft³ sealed · 1.24 ft³ ported
- PowerBass 3XL-1210D 0.99 ft³ sealed · 1.31 ft³ ported
- Fi Audio Alpha v2.1 12 S2 0.85 ft³ sealed · 1.20 ft³ ported
- Fi Audio Alpha v2.1 12 S4 0.81 ft³ sealed · 1.20 ft³ ported
- Magnum MHW 12-22DCLE 0.92 ft³ sealed · 1.24 ft³ ported
FAQ
What box does the Audiopipe TXX-BD1-12 need?
Recommended net volume: 0.85 ft³ sealed, 1.31 ft³ ported tuned to 34 Hz — for one sub in a sedan at 600 W. Fit the box to your space and amp in the free calculator, with plans and a cut sheet.
What are the Audiopipe TXX-BD1-12 Thiele/Small specs?
Fs 38 Hz, Qts 0.55, Vas 0.92 ft³, Xmax 0.17″, Sd 82.2 in².
What is the Audiopipe TXX-BD1-12 mounting depth?
Mounting depth is 5 7/8″, cutout diameter 11 7/16″. The inside depth of the box must exceed the mounting depth by at least 1″.
How much power does the Audiopipe TXX-BD1-12 handle and how do I wire it?
RMS power rating: 600 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.