Audiobahn AWC12X
12″ subwoofer · 500 W RMS
| Source | web.archive.org · manufacturer data |
|---|---|
| Checked against source | October 2026 |
| Thiele/Small parameters | not in the spec sheet: Sd — typical value for the size used |
| Mounting dimensions | 3 of 4 — missing: magnet diameter; the designer will use an estimate |
Recommended box
For a sedan, one sub, 500 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 · 0.91 |
|---|---|
| Fc | 45 Hz |
| F3 (−3 dB, no cabin gain) | 40 Hz |
| Example box (outside) | 31 1/2″ × 15 3/4″ × 8 3/4″ |
Ported
deeper, louder| Tuning (Fb) | 30 Hz |
|---|---|
| Port | slot 1 9/16 × 14 5/16″, 25 3/4″ long |
| Port velocity at 500 W | 56 ft/s |
| F3 (−3 dB, no cabin gain) | 31 Hz |
| Example box (outside) | 31 1/2″ × 15 3/4″ × 12 3/4″ |
Deeper: 2.93 ft³ (83 L) tuned to 32 Hz, 31 1/2″ × 15 3/4″ × 15 5/16″ 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 | — |
| RMS power | 500 W |
| Fs | 23.7 Hz |
| Qts | 0.47 |
| Qes | 0.54 |
| Qms | 3.9 |
| Vas | 4.59 ft³ |
|---|---|
| Re | 3.2 Ω |
| Sd | ≈ 76 in² |
| Xmax | 0.28″ |
| EBP | 44 — suits sealed calc. |
| Sensitivity, 1 W / 1 m | 87.1 dB calc. |
Mounting dimensions
| Cutout diameter | 10 7/8″ |
|---|---|
| Mounting depth | 5 1/16″ |
| Overall diameter | 12 1/2″ |
“≈” 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 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.
- Polk Audio GXR124 1.87 ft³ sealed · 2.44 ft³ ported
- Morel Ultimo Titanium 124 (SVC 4 ohm) 1.66 ft³ sealed · 2.15 ft³ ported
- Kenwood KFC-PS3016W 1.91 ft³ sealed · 1.80 ft³ ported
- Orion 2NT 12 DVC 1.77 ft³ sealed · 2.30 ft³ ported
- Kenwood KFC-XW1241 1.73 ft³ sealed · 1.34 ft³ ported
- JL Audio 12W3v2-D6 1.84 ft³ sealed · 2.40 ft³ ported
FAQ
What box does the Audiobahn AWC12X need?
Recommended net volume: 1.73 ft³ sealed, 2.26 ft³ ported tuned to 30 Hz — for one sub in a sedan at 500 W. Fit the box to your space and amp in the free calculator, with plans and a cut sheet.
What are the Audiobahn AWC12X Thiele/Small specs?
Fs 23.7 Hz, Qts 0.47, Vas 4.59 ft³, Xmax 0.28″.
What is the Audiobahn AWC12X mounting depth?
Mounting depth is 5 1/16″, cutout diameter 10 7/8″. The inside depth of the box must exceed the mounting depth by at least 1″.
How much power does the Audiobahn AWC12X handle and how do I wire it?
RMS power rating: 500 W. Wiring for several subs and amp power — in the wiring calculator.