4 Channel 3000 Watt Amplifier - SMD Class A/B MOSFET, RCA Input, Amp Power Supply, Bass Boost, Mobile Audio, Amplifier for Car Speakers, Car Electronics, Crossover Network - Lanzar EV464 AUDIO EVOLUTION: This car speakers amp features regulated MOSFET Pulse Width Modulated that maintain rated power over a wide range of battery voltage. Excellent frequency response rates place these amps in a class of their own SOUND SPECIALIZATION: This high-powered Power Amplifier is cutting edge technology at its finest. Nickel-plated RCA connectors and speaker screw-down terminals ensure a secure connection between amplifier and speakers that allow distortion-free sound INTELLIGENT DESIGN: The car audio amplifier 4 channel safety features include power and protection LED indicators; soft turn-on/off; and thermal, overload, and speaker-short protection RCA JACKS: The Line-Out jacks allow you to build multiple amplifier systems without having to use splitter cords to distribute the signal. This makes it easier to bring one set into the first amp, then use the line out jack as the feed to the next amp POWER INPUT: The mosfet amplifier connections are for input power, chassis ground,& remote turn-on function. Use 8 gauge wiring for power & ground connections. The terminals will handle up to 4 gauge wiring with no negative effect or distortion of audio