Check the listing for details. Ashly FA125.4 500-watt 4-channel Power Amplifier. Condition: New. Listed at 999.00 USD. Efficient, Flexible Power Amplification The Ashly FA-125.4 delivers the high-performance power you need, but without the bulk, heat, and power consumption you don't. This power amplifier's efficient Class D design offers cool, quiet operation, which is further bolstered by a Silent Active Cooling system and an energy-saving Auto Sleep/Wake Mode. The FA-125.4 features convenient front-panel status LEDs, power switch, and level controls, along with remote GPIO for DC level control, as well as standby and failure modes. You'll appreciate the FA-125.4's switchable input sensitivity, as well as its built-in DSP that provides you with an 80Hz highpass filter and a clip limiter. You also get FA Power Sharing and 70-/100-volt compatibility for maximum flexibility.