Audiobahn AW120Q
12″ subwoofer · 500 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, 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 · 0.72 |
|---|---|
| Fc | 61 Hz |
| F3 (−3 dB, no cabin gain) | 63 Hz |
| Example box (outside) | 14 3/16″ × 14 3/16″ × 9 5/16″ |
Ported
deeper, louder| Tuning (Fb) | 35 Hz |
|---|---|
| Port | slot 1 15/16 × 14 5/16″, 25 3/16″ long |
| Port velocity at 500 W | 64 ft/s |
| F3 (−3 dB, no cabin gain) | 32 Hz |
| Example box (outside) | 31 1/2″ × 15 3/4″ × 12 5/16″ |
Deeper: 1.52 ft³ (43 L) tuned to 35 Hz, 31 1/2″ × 15 3/4″ × 10″ 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 | 32.4 Hz |
| Qts | 0.38 |
| Qes | 0.42 |
| Qms | 4.43 |
| Vas | 1.59 ft³ |
| Re | 3.25 Ω |
|---|---|
| Sd | 69.8 in² |
| Xmax | 0.39″ |
| Vd | 27.5 in³ calc. |
| Mms | 154 g calc. |
| BL | 15.6 T·m calc. |
| EBP | 77 — sealed or ported calc. |
| Sensitivity, 1 W / 1 m | 87.6 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 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″
- Audiobahn AW1200N 12″
Similar 12″ subwoofers from other brands
Close in Fs, Qts and Vas — a box of similar volume will suit them.
- SoundQubed HDS2.212 D2 0.71 ft³ sealed · 2.33 ft³ ported
- SoundQubed HDS2.212 D4 0.71 ft³ sealed · 2.33 ft³ ported
- SPL Dynamics XTR-300D2 0.74 ft³ sealed · 2.40 ft³ ported
- Kicker CompVX 12" 4-Ohm DVC (50CVX124) 0.74 ft³ sealed · 1.31 ft³ ported
- Hertz Hi-Energy HX 300 D (DVC 4+4 ohm) 0.71 ft³ sealed · 1.24 ft³ ported
- Deaf Bonce Apocalypse DB-SA2712 D1 0.71 ft³ sealed · 1.20 ft³ ported
FAQ
What box does the Audiobahn AW120Q need?
Recommended net volume: 0.64 ft³ sealed, 2.08 ft³ ported tuned to 35 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 AW120Q Thiele/Small specs?
Fs 32.4 Hz, Qts 0.38, Vas 1.59 ft³, Xmax 0.39″, Sd 69.8 in².
What is the Audiobahn AW120Q 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 AW120Q handle and how do I wire it?
RMS power rating: 500 W. Wiring for several subs and amp power — in the wiring calculator.