We are an authorized Boss dealer The BOSS R3002 600W 2-Channel MOSFET Car Audio Power Amplifier features Soft Turn-On Circuit, Thermal Overload & Speaker's Short Protection, Tri-Mode Operation, Power & Protection LED's, and a Remote Subwoofer Level Control. The Class A/B means greater than 50% of the input signal is used while the other percentage is turned ?off?. These amplifiers run cooler and more efficiently with low distortion and high reliability. Best used for Speakers. Let the BOSS R3002 power your car audio system! - Power & Protection LEDs - Amplifier Class: Class A/B - Technology: MOSFET - Number of Output Channels: 2 ! : https://www.vminnovations.com/sys/resource.