Audiobahn AWP312T
12″ subwoofer · 1,200 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, 1,200 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) | Flat and accurate · 0.71 |
|---|---|
| Fc | 42 Hz |
| F3 (−3 dB, no cabin gain) | 45 Hz |
| Example box (outside) | 14 9/16″ × 14 9/16″ × 9 7/8″ |
Ported
deeper, louder| Tuning (Fb) | 30 Hz |
|---|---|
| Port | slot 2 15/16 × 14 5/16″, 46 15/16″ long |
| Port velocity at 1,200 W | 65 ft/s |
| F3 (−3 dB, no cabin gain) | 26 Hz |
| Example box (outside) | 31 1/2″ × 15 3/4″ × 16 15/16″ |
Deeper: 1.73 ft³ (49 L) tuned to 26 Hz, 31 1/2″ × 15 3/4″ × 12 1/4″ 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 | — |
| RMS power | 1,200 W |
| Fs | 23 Hz |
| Qts | 0.39 |
| Qes | 0.469 |
| Qms | 2.2 |
| Vas | 1.76 ft³ |
| Re | 1.7 Ω |
|---|---|
| Sd | 81.5 in² |
| Xmax | 0.71″ |
| Vd | 57.7 in³ calc. |
| Mms | 376 g calc. |
| BL | 14 T·m calc. |
| EBP | 49 — suits sealed calc. |
| Sensitivity, 1 W / 1 m | 83.1 dB calc. |
Mounting dimensions
| Cutout diameter | 11 3/8″ |
|---|---|
| Mounting depth | 4 3/4″ |
| Overall diameter | 12 3/8″ |
The published Sd of 48.1 in² doesn't match Fs, Vas and Mms — using the calculated 81.5 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
- web.archive.org/web/20060317160248/http://www.audiobahn.com/Audiobahn06/images/t
- web.archive.org/web/20060317161941/http://www.audiobahn.com/Audiobahn06/images/t
Other Audiobahn 12″ models
- Audiobahn ALUM12 12″
- Audiobahn ALUM12N 12″ · dual 6 Ω
- Audiobahn ALUM12Q 12″ · dual 6 Ω
- Audiobahn ALUM12X 12″
- Audiobahn AW120Q 12″
- Audiobahn AW120SVC 12″
- Audiobahn AW120T 12″ · 4 Ω
- Audiobahn AW120XS 12″
- Audiobahn AW121T 12″ · 4 Ω
- Audiobahn AW122N 12″ · 4 Ω
- Audiobahn AW122T 12″
- Audiobahn AW1200 12″
Similar 12″ subwoofers from other brands
Close in Fs, Qts and Vas — a box of similar volume will suit them.
- Hertz Mille Pro MPS 300 S4 (shallow, SVC 4 ohm) 0.85 ft³ sealed · 1.77 ft³ ported
- NVX VCW122v3 0.74 ft³ sealed · 1.31 ft³ ported
- Diamond HXP122 0.78 ft³ sealed · 1.24 ft³ ported
- Dayton Audio RSS315HO-44 0.71 ft³ sealed · 1.38 ft³ ported
- Diamond H122 0.71 ft³ sealed · 1.20 ft³ ported
- Diamond DE122 1.02 ft³ sealed · 1.48 ft³ ported
FAQ
What box does the Audiobahn AWP312T need?
Recommended net volume: 0.74 ft³ sealed, 2.40 ft³ ported tuned to 30 Hz — for one sub in a sedan at 1,200 W. Fit the box to your space and amp in the free calculator, with plans and a cut sheet.
What are the Audiobahn AWP312T Thiele/Small specs?
Fs 23 Hz, Qts 0.39, Vas 1.76 ft³, Xmax 0.71″, Sd 81.5 in².
What is the Audiobahn AWP312T mounting depth?
Mounting depth is 4 3/4″, cutout diameter 11 3/8″. The inside depth of the box must exceed the mounting depth by at least 1″.
How much power does the Audiobahn AWP312T handle and how do I wire it?
RMS power rating: 1,200 W. Wiring for several subs and amp power — in the wiring calculator.