Need an amplifier that makes your music experience better than before? Go for Arc Audio XXD 4080 4X80 Watt Amplifier. XXD 4080 is a full range class D design. The compact chassis design of this amplifier allows for flexible installation into small areas. It has Phillips Technology Chip Based Class D Output Technology. High frequency switching power supply allows for greater separation from audible listening frequencies increasing sound quality and lowering THD. The input inductor power supply isolation protects from unwanted interference in AM/FM reception. It has an extremely low voltage chip based soft turn on circuit, an ultra Low ESR high capacity power supply storage bank and a secondary dedicated Low ESR capacitor bank for output devices. Optically isolated power supply allows for increased sound quality and lower THD ratings by isolating the power supply from the input stage.