Features
The R8A is our reference level 750W 8” car audio low frequency subwoofer driver, available in a dual 2 ohm or dual 4 ohm configuration. It features a high quality double 3/4” thick Y35 magnet assembly and a high powered 4 layer 2” 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) | 8.625 |
| Mounting Diameter (inches) | 7.5 |
| Mounting Depth (inches) | 5.0 |
| Displacement | 0.05 ft3 |
| Cone Material | Non-Pressed Paper |
| Dust Cap | Poly |
| Frequency Range (Hz) | 28-100 |
| Voice Coil Diameter | 2″ |
| Net Weight (lbs) | 19 |
Recommended Enclosures
For musical listening, a 1.0 cu. ft. (28 litres) net sealed enclosure is recommended.
For higher output, a 1.5 cu. ft. (42 litres) net ported enclosure tuned to 35Hz
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) | 37.98 |
| Qms | 2.503 |
| Qes | 0.481 |
| Qts | 0.403 |
| Vas (Litres) | 4.192 |
| Xmax (mm) | 15 |
| SPL 1W/m (db) | 80.0 |
| Continuous Power (W) | 750 |
| Re (Ω) | 4.0 |
| Le (mH) | 7.13 |
| BL | 17.1 |
Usage Guidelines
- Use the recommended power and enclosures for the most reliable operation
- Use a subsonic filter with recommended ported enclosures.
- Ensure that all enclosures are securely fastened to the car before driving to prevent damage occupants or equipment.