Description
ARC Audio • SW Shallow Subwoofer
ARC Audio SW-12D4 12-Inch SW Shallow-Mount Subwoofer, Dual 4-Ohm, 400W RMS
The SW-12D4 brings ARC Audio SW shallow-mount engineering to a 12-inch driver with dual 4-ohm voice coils. Its 2.625-inch mounting depth suits under-seat, seat-back and stealth installations where enclosure clearance is limited.
12-inch shallow driverDual 4-ohm coils400W RMS2.625-inch mounting depth
Design and Construction
A front-mounted N42UH neodymium motor and CNC-machined vented motor cap are developed for front-loaded and close-coupled enclosure applications. The reinforced cellulose cone uses a hydrophobic composite coating, paired with a low-shore butyl surround and treated Nomex/cotton spider.
- 2.625-inch mounting depth helps the 12-inch SW fit under-seat and other space-limited enclosures.
- Dual 4-ohm voice coils give the SW-12D4 flexible amplifier-matching options.
- 400W RMS and 800W peak power handling support a compact, performance-focused bass system.
- Front-mounted N42UH neodymium motor and vented motor cap are designed for front-loaded enclosures.
- Reinforced cellulose cone, hydrophobic coating and butyl surround support controlled bass response.
Enclosure and System Planning
For the SW-12D4, ARC Audio lists a sealed enclosure range of 0.65 to 1.0 cu ft, with 0.8 cu ft optimum.
SW-12D4 Technical Specifications
| Model | SW-12D4 |
| Speaker size | 12 inches |
| Voice coil configuration | Dual 4-ohm |
| RMS power handling | 400 watts |
| Peak power handling | 800 watts |
| Mounting depth | 2.625 inches |
| Cutout diameter | 11 inches |
| Outer diameter | 12.5 inches |
| Sealed enclosure (minimum / optimum / maximum) | 0.65 / 0.8 / 1.0 cu ft |
| Motor | Front-mounted N42UH neodymium |
| Cone | Reinforced cellulose fiber with hydrophobic composite coating |
| Surround | Low-shore butyl |
| Spider | Treated Nomex/cotton |
