Description
The ARC Audio SW12 is a sound-quality-focused 12-inch ultra-shallow subwoofer for under-seat truck enclosures, behind-seat systems, down-fire designs and other installations where a conventional full-depth subwoofer will not fit.
A front-mounted N42UH neodymium motor places the motor outside the sealed air chamber in a properly designed front-loaded enclosure. This architecture preserves usable enclosure volume and exposes the motor assembly to open-air cooling. The reinforced cellulose-fiber cone, hydrophobic treatment, low-shore butyl-rubber surround and Nomex/cotton-blend spider support controlled operation through 15.5 mm of one-way linear excursion.
Specifications
| Model | SW12 |
|---|---|
| Nominal size | 12 inches |
| Voice-coil options | Dual 2 ohms or dual 4 ohms |
| RMS power handling | 400 watts |
| Maximum power handling | 800 watts |
| One-way linear excursion | 15.5 mm Xmax |
| Mounting depth | 2.625 inches |
| Recommended sealed enclosure | 0.80 cu. ft. net per driver |
| Motor | Front-mounted N42UH neodymium |
| Voice-coil former | 3-inch aluminum |
Features
- Ultra-shallow 12-inch chassis for depth-restricted installations.
- Front-mounted neodymium motor preserves enclosure volume and improves cooling access.
- Hydrophobic reinforced cellulose-fiber cone.
- Low-shore butyl-rubber surround and Nomex/cotton-blend spider.
- Dual 2-ohm and dual 4-ohm versions support flexible system wiring.
Published enclosure volume is net internal volume per driver. Confirm the current technical drawing before enclosure fabrication.

