Audiobahn AW122T
12″ subwoofer · 550 W RMS
The Audiobahn AW122T is a 12″ subwoofer. With Qts 0.66 and EBP 47 it suits a sealed box: tight bass in a small enclosure; a ported box would need a lot of volume. Modest excursion (Xmax 0.43″) — for clean sound at moderate levels, not for SPL competitions.
| 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, 550 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 · 0.93 |
|---|---|
| Fc | 47 Hz |
| F3 (−3 dB, no cabin gain) | 40 Hz |
| Example box (outside) | 31 1/2″ × 15 3/4″ × 8 5/8″ |
Ported
deeper, louder| Tuning (Fb) | 34 Hz |
|---|---|
| Port | slot 1 9/16 × 14 5/16″, 33 15/16″ long |
| Port velocity at 550 W | 51 ft/s |
| F3 (−3 dB, no cabin gain) | 35 Hz |
| Example box (outside) | 31 1/2″ × 15 3/4″ × 9 13/16″ |
Deeper: 2.90 ft³ (82 L) tuned to 33 Hz, 31 1/2″ × 15 3/4″ × 15 3/4″ 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 | 550 W |
| Fs | 33.4 Hz |
| Qts | 0.66 |
| Qes | 0.71 |
| Qms | 8.92 |
| Vas | 1.73 ft³ |
| Re | 3.3 Ω |
|---|---|
| Sd | 74.4 in² |
| Xmax | 0.43″ |
| Vd | 32.2 in³ calc. |
| Mms | 151 g calc. |
| BL | 12.1 T·m calc. |
| EBP | 47 — suits sealed calc. |
| Sensitivity, 1 W / 1 m | 86.1 dB calc. |
Mounting dimensions
| Cutout diameter | 11 1/8″ |
|---|---|
| Mounting depth | 5 5/8″ |
| Overall diameter | 12 3/4″ |
Where it fits in a vehicle
Spots from our vehicle guides where the cutout, mounting depth and recommended box fit. The spot sizes are approximate — measure your own vehicle.
- Bronco 4-door — behind the rear seat sealed and ported box
- Wrangler 4-door, hard top — behind the rear seat sealed and ported box
- Wrangler 4-door, soft top — behind the rear seat sealed and ported box
- Silverado / Sierra Crew Cab — under the rear seat sealed and ported box
- FJ Cruiser — behind the rear seat sealed and ported box
- El Camino 1978–87 — behind the seat sealed and ported box
- Cherokee XJ — cargo area, spare moved out sealed and ported box
- Excursion — behind the third row sealed and ported box
- Mustang 2015–2023 coupe — trunk sealed and ported box
- Challenger / Charger — trunk sealed and ported box
- Club Car Precedent — under the rear seat sealed and ported box
“≈” 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 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.
- Hertz Energy ES 300.5 (SVC 4 ohm) 1.80 ft³ sealed · 1.38 ft³ ported
- URAL AS-C12.2 (4+4) 1.73 ft³ sealed · 1.48 ft³ ported
- MTX Audio 7512-44 2.01 ft³ sealed · 2.01 ft³ ported
- CT Sounds BIO-12 D2 1.77 ft³ sealed · 1.02 ft³ ported
- Pioneer TS-D12D2 1.73 ft³ sealed · 1.20 ft³ ported
- Pioneer TS-D12D4 1.80 ft³ sealed · 1.20 ft³ ported
FAQ
What box does the Audiobahn AW122T need?
Recommended net volume: 1.70 ft³ sealed, 1.38 ft³ ported tuned to 34 Hz — for one sub in a sedan at 550 W. Fit the box to your space and amp in the free calculator, with plans and a cut sheet.
What are the Audiobahn AW122T Thiele/Small specs?
Fs 33.4 Hz, Qts 0.66, Vas 1.73 ft³, Xmax 0.43″, Sd 74.4 in².
What is the Audiobahn AW122T mounting depth?
Mounting depth is 5 5/8″, cutout diameter 11 1/8″. The inside depth of the box must exceed the mounting depth by at least 1″.
How much power does the Audiobahn AW122T handle and how do I wire it?
RMS power rating: 550 W. Wiring for several subs and amp power — in the wiring calculator.
Is the Audiobahn AW122T better sealed or ported?
EBP 47: a sealed box (1.70 ft³) suits it best — tight bass in a compact enclosure. Ported is possible (1.38 ft³, tuned to 34 Hz) but larger.
What port does the Audiobahn AW122T need?
For the 1.38 ft³ ported box tuned to 34 Hz: slot 1 9/16 × 14 5/16″, 33 15/16″ long, area 22.6 in²; or a round port Ø5 3/8″, ≈ 33 15/16″ long. Port air speed at 550 W: 51 ft/s.
What box do two Audiobahn AW122T subs need?
Two subs need twice the volume: 3.39 ft³ sealed, or 2.75 ft³ ported at the same 34 Hz tuning with twice the port area. One shared chamber or one per sub — whatever fits your vehicle.