The TM400X4ad is a 400 Watt 4-channel amplifier with high efficiency Class-ad technology and a conformal coated pc board designed for motorsport and marine applications.

• Rockford Fosgate proprietary Class-AD technology
• 4/2 Ohm muti-impedance Constant Power
• Differential inputs with high level auto turn-on feature
• 8 AWG power/ground connector w/ upgraded RCA connectors
• Remote-Out feature when using high level inputs
• 2/4 channel input switch
• 4 Ohm bridged capable
• C.L.E.A.N. input/output clip detection and indicator LEDs
• Top mounted controls
• Dual fan cooled
• Real time thermal sensing
• Dual extruded heat sinks
• Discrete surface mount technology
• Marine grade two part epoxy coating on circuit boards
• 2 Year Standard Warranty 
• Get a 1 Year Extended Warranty