Amp2.1-a is a 3-channel professional car audio amplifier with high reliability to offer perfect music performance. Feature 1. Ab-class amplifier 2. Strong anti-interference ability 3. Array mosfets output stage 4. Low noise 5. An independent driver power supply 6. Multi-protection circuits for over/under-voltage/load/temperature 7. On/off no need acc 8. Distortion led 9. Smart fan output 10. Special audio signal cables are available for both rca and high-level input mode without high low converter 11. Easy fix by ultrathin tablet shaping 3kg/piece, 355x220x40mm