Features
The R12A is our reference level 1200W 12” car audio low frequency subwoofer driver, available in a dual 2 ohm configuration. It features a high quality triple 3/4” thick Y35 magnet assembly and a 4 layer 3” coil which delivers tremendous low frequency output in compact enclosures.
The thick paper cone and big roll surround provides an unmatched bass experience. The pole vent and cooling ring promotes cooling to ensure reliability. Push terminals are provided to ensure a secure connection.
Physical Specifications
| Overall Diameter (inches) | 12.25 |
| Mounting Diameter (inches) | 11.25 |
| Mounting Depth (inches) | 7.6 |
| Displacement | 0.12 ft3 |
| Cone Material | Paper |
| Dust Cap | Poly |
| Frequency Range (Hz) | 20-100 |
| Voice Coil Diameter | 3” |
| Net Weight (lbs) | 49 |
Recommended Enclosures
For musical listening, a 1 cu. ft. (28 litres) net sealed enclosure is recommended.
For higher output, a 2.25 cu. ft. (63 litres) net ported enclosure with two 4” diameter ports, 18” long is recommended.
When using multiple subwoofers in a common enclosure, multiply the required volume by the number of subwoofers, and use two ports (as specified above) per subwoofer.
T/S Parameters
| Fs (Hz) | 36.3 |
| Qms | 4.12 |
| Qes | 0.41 |
| Qts | 0.36 |
| Vas (Litres) | 53.6 |
| Xmax (mm) | 25 |
| SPL 1W/m (db) | 89.9 |
| Continuous Power (W) | 1200 |
| Re (Ω) | 4.2 |
| Le (mH) | 7.13 |
| BL | 25.3 |
Usage Guidelines
- Build rigid enclosures using ¾” MDF or thicker.
- Use two layers of ¾” MDF for the enclosure’s baffle.
- Use the recommended power and enclosures for the most reliable operation
- Use a 33Hz subsonic filter with the recommended ported enclosure.
- Ensure that all enclosures are securely fastened to the car before driving to prevent damage occupants or equipment.
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