Audiobahn AW120XS
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) | Flat and accurate · 0.71 |
|---|---|
| Fc | 59 Hz |
| F3 (−3 dB, no cabin gain) | 63 Hz |
| Example box (outside) | 14 3/16″ × 14 3/16″ × 10 1/16″ |
Ported
deeper, louder| Tuning (Fb) | 34 Hz |
|---|---|
| Port | slot 2 3/16 × 14 5/16″, 27 1/8″ long |
| Port velocity at 500 W | 60 ft/s |
| F3 (−3 dB, no cabin gain) | 31 Hz |
| Example box (outside) | 31 1/2″ × 15 3/4″ × 13 3/8″ |
Deeper: 1.62 ft³ (46 L) tuned to 35 Hz, 31 1/2″ × 15 3/4″ × 10 11/16″ 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 | 31.6 Hz |
| Qts | 0.38 |
| Qes | 0.41 |
| Qms | 4.7 |
| Vas | 1.77 ft³ |
|---|---|
| Re | 3.2 Ω |
| Sd | ≈ 76 in² |
| Xmax | 0.39″ |
| EBP | 77 — sealed or ported calc. |
| Sensitivity, 1 W / 1 m | 87.9 dB calc. |
Mounting dimensions
| Cutout diameter | 10 7/8″ |
|---|---|
| Mounting depth | 5 3/8″ |
| 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 AW121T 12″ · 4 Ω
- Audiobahn AW122N 12″ · 4 Ω
- Audiobahn AW122T 12″
- Audiobahn AW1200 12″
- Audiobahn AW1200N 12″
Similar 12″ subwoofers from other brands
Close in Fs, Qts and Vas — a box of similar volume will suit them.
- SPL Dynamics XTR-300D4 0.74 ft³ sealed · 2.44 ft³ ported
- DLS RCW12 0.71 ft³ sealed · 2.26 ft³ ported
- SoundQubed HDS2.212 D2 0.71 ft³ sealed · 2.33 ft³ ported
- SoundQubed HDS2.212 D4 0.71 ft³ sealed · 2.33 ft³ ported
- Ground Zero GZRW 30SPL (2x2 Ohm) 0.71 ft³ sealed · 2.26 ft³ ported
- AMP MASS 800 12D2 V.2 0.71 ft³ sealed · 2.26 ft³ ported
FAQ
What box does the Audiobahn AW120XS need?
Recommended net volume: 0.71 ft³ sealed, 2.26 ft³ ported tuned to 34 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 AW120XS Thiele/Small specs?
Fs 31.6 Hz, Qts 0.38, Vas 1.77 ft³, Xmax 0.39″.
What is the Audiobahn AW120XS mounting depth?
Mounting depth is 5 3/8″, 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 AW120XS handle and how do I wire it?
RMS power rating: 500 W. Wiring for several subs and amp power — in the wiring calculator.