Audiobahn AW1200V
12″ subwoofer · dual 4 Ω · 700 W RMS
The Audiobahn AW1200V is a 12″ subwoofer. With Qts 0.55 and EBP 58 it works both sealed and ported: sealed is tighter and smaller, ported is deeper and louder.
| 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, 700 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 · 0.81 |
|---|---|
| Fc | 51 Hz |
| F3 (−3 dB, no cabin gain) | 48 Hz |
| Example box (outside) | 31 1/2″ × 15 3/4″ × 8 3/16″ |
Ported
deeper, louder| Tuning (Fb) | 35 Hz |
|---|---|
| Port | slot 1 9/16 × 14 5/16″, 29 1/4″ long |
| Port velocity at 700 W | 63 ft/s |
| F3 (−3 dB, no cabin gain) | 37 Hz |
| Example box (outside) | 31 1/2″ × 15 3/4″ × 9 7/8″ |
Deeper: 2.72 ft³ (77 L) tuned to 35 Hz, 31 1/2″ × 15 3/4″ × 15 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 | dual 4 Ω |
| RMS power | 700 W |
| Fs | 35 Hz |
| Qts | 0.55 |
| Qes | 0.602 |
| Qms | 6.53 |
| Vas | 1.84 ft³ |
| Re (one coil) | 3.8 Ω |
|---|---|
| Sd | 69.8 in² |
| Xmax | 0.53″ |
| Vd | 37.1 in³ calc. |
| Mms | 114 g calc. |
| BL | 12.6 T·m calc. |
| EBP | 58 — sealed or ported calc. |
| Sensitivity, 1 W / 1 m | 87.7 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 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.
- Swat MAS-12 v.2 1.55 ft³ sealed · 1.48 ft³ ported
- Ground Zero GZTW 12F (2x2 Ohm) 1.45 ft³ sealed · 1.48 ft³ ported
- Diamond D312D4 1.77 ft³ sealed · 1.45 ft³ ported
- Kenwood KFC-W12PS 1.80 ft³ sealed · 1.52 ft³ ported
- Phoenix Gold SXT12D2 (slim, DVC 2 ohm) 1.73 ft³ sealed · 1.59 ft³ ported
- Swat REV-12 v.2 1.27 ft³ sealed · 1.31 ft³ ported
FAQ
What box does the Audiobahn AW1200V need?
Recommended net volume: 1.59 ft³ sealed, 1.48 ft³ ported tuned to 35 Hz — for one sub in a sedan at 700 W. Fit the box to your space and amp in the free calculator, with plans and a cut sheet.
What are the Audiobahn AW1200V Thiele/Small specs?
Fs 35 Hz, Qts 0.55, Vas 1.84 ft³, Xmax 0.53″, Sd 69.8 in².
What is the Audiobahn AW1200V 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 AW1200V handle and how do I wire it?
RMS power rating: 700 W. Dual 4 Ω voice coils: series gives 8 Ω, parallel gives 2 Ω at the amp. Wiring for several subs and amp power — in the wiring calculator.
Is the Audiobahn AW1200V better sealed or ported?
EBP 58: both work — sealed 1.59 ft³ is tighter and smaller, ported 1.48 ft³ tuned to 35 Hz is deeper and louder.
What port does the Audiobahn AW1200V need?
For the 1.48 ft³ ported box tuned to 35 Hz: slot 1 9/16 × 14 5/16″, 29 1/4″ long, area 22.6 in²; or a round port Ø5 3/8″, ≈ 29 1/4″ long. Port air speed at 700 W: 63 ft/s.
What box do two Audiobahn AW1200V subs need?
Two subs need twice the volume: 3.18 ft³ sealed, or 2.97 ft³ ported at the same 35 Hz tuning with twice the port area. One shared chamber or one per sub — whatever fits your vehicle.