MS-AM402 2 Channel Marine Amplifier - 400W Features:Marine Grade Chassis - Stainless steel end caps and bottom plate provide a stunning finish with added environmental protection.Heat Sink Technology - Heat sink technology transfers heat more efficiently and offers more thermal stability for maximum component reliability.Class-AB Design - The 400 Watt 2-Ohm stable (per channel) design ensures clean and powerful amplification of the input signal,enough to rock the boat.Conformal Coated Circuitry - Provides added protection from salt air and moisture to ensure maximum product life.RCA Line Out - A pass through the RCA output enables linking of multiple amplifiers for enhanced system performance.2 Channels - Capable of powering 2 speakers, a sub (bridged) or 4 speakers in parallel.WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.