Audiobahn AWES12P
12″ subwoofer · DVC · 1,100 W RMS
The Audiobahn AWES12P is a 12″ subwoofer. With Qts 0.50 and EBP 45 it suits a sealed box: tight bass in a small enclosure; a ported box would need a lot of volume.
| Source | web.archive.org · manufacturer data |
|---|---|
| Checked against source | October 2026 |
| Thiele/Small parameters | complete |
| Mounting dimensions | 2 of 4 — missing: frame outer diameter, magnet diameter; the designer will use an estimate |
- Fs, Vas and Sd don't match the moving mass of 151.33 g (they give 219 g) — one of the spec sheet values is probably wrong.
Recommended box
For a sedan, one sub, 1,100 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 · 0.80 |
|---|---|
| Fc | 40 Hz |
| F3 (−3 dB, no cabin gain) | 38 Hz |
| Example box (outside) | 14 3/16″ × 14 3/16″ × 17 9/16″ |
Ported
deeper, louder| Tuning (Fb) | 30 Hz |
|---|---|
| Port | slot 1 15/16 × 14 5/16″, 45 1/16″ long |
| Port velocity at 1,100 W | 67 ft/s |
| F3 (−3 dB, no cabin gain) | 28 Hz |
| Example box (outside) | 31 1/2″ × 15 3/4″ × 12 7/16″ |
Deeper: 2.90 ft³ (82 L) tuned to 26 Hz, 31 1/2″ × 15 3/4″ × 18 13/16″ 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 | DVC |
| RMS power | 1,100 W |
| Fs | 25 Hz |
| Qts | 0.50 |
| Qes | 0.55 |
| Qms | 5.89 |
| Vas | 2.14 ft³ |
| Re (one coil) | 3.6 Ω |
|---|---|
| Sd | 74.4 in² |
| Xmax | 0.51″ |
| Vd | 38.1 in³ calc. |
| Mms | 219 g calc. |
| BL | 15 T·m calc. |
| EBP | 45 — suits sealed calc. |
| Sensitivity, 1 W / 1 m | 84.4 dB calc. |
Mounting dimensions
| Cutout diameter | 10 7/8″ |
|---|---|
| Mounting depth | 8 5/8″ |
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
- 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 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
- web.archive.org/web/20060317155848/http://www.audiobahn.com/Audiobahn06/images/t
- web.archive.org/web/20060317155836/http://www.audiobahn.com/Audiobahn06/images/t
- web.archive.org/web/20060317160311/http://www.audiobahn.com/Audiobahn06/images/t
- web.archive.org/web/20060317162145/http://www.audiobahn.com/Audiobahn06/images/t
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.
- Sundown Audio SDv3-12 D2 1.45 ft³ sealed · 1.70 ft³ ported
- Soundstream RW-12 1.09 ft³ sealed · 1.66 ft³ ported
- Sundown Audio SDv3-12 D4 1.34 ft³ sealed · 1.77 ft³ ported
- Hertz Mille Pro MPS 300 S2 (shallow, SVC 2 ohm) 1.59 ft³ sealed · 1.84 ft³ ported
- Kenwood KFC-XW1200F 1.73 ft³ sealed · 1.77 ft³ ported
- Kicx QS-300 (4+4) 1.34 ft³ sealed · 1.62 ft³ ported
FAQ
What box does the Audiobahn AWES12P need?
Recommended net volume: 1.41 ft³ sealed, 1.70 ft³ ported tuned to 30 Hz — for one sub in a sedan at 1,100 W. Fit the box to your space and amp in the free calculator, with plans and a cut sheet.
What are the Audiobahn AWES12P Thiele/Small specs?
Fs 25 Hz, Qts 0.50, Vas 2.14 ft³, Xmax 0.51″, Sd 74.4 in².
What is the Audiobahn AWES12P mounting depth?
Mounting depth is 8 5/8″, 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 AWES12P handle and how do I wire it?
RMS power rating: 1,100 W. Wiring for several subs and amp power — in the wiring calculator.
Is the Audiobahn AWES12P better sealed or ported?
EBP 45: a sealed box (1.41 ft³) suits it best — tight bass in a compact enclosure. Ported is possible (1.70 ft³, tuned to 30 Hz) but larger.
What port does the Audiobahn AWES12P need?
For the 1.70 ft³ ported box tuned to 30 Hz: slot 1 15/16 × 14 5/16″, 45 1/16″ long, area 28.2 in²; or a round port Ø6″, ≈ 45 1/16″ long. Port air speed at 1,100 W: 67 ft/s.
What box do two Audiobahn AWES12P subs need?
Two subs need twice the volume: 2.83 ft³ sealed, or 3.39 ft³ ported at the same 30 Hz tuning with twice the port area. One shared chamber or one per sub — whatever fits your vehicle.