Check the listing for details. Ashly FX-125.4 500-watt 4-channel Power Amplifier. Condition: New. Listed at 999.00 USD. Cutting-edge Power Amp with Wireless Control The Ashly FX-125.4 packs cutting-edge technology into a compact, cool-running power amplifier. For starters, the FX-125.4 includes built-in networking capabilities, enabling easy configuration over Ethernet or Wi-Fi using an intuitive, web-based software interface. Advanced DSP on all the unit's inputs and outputs makes optimizing and fine-tuning your loudspeakers a piece of cake. The FX-125.4 contains balanced and unbalanced inputs, along with S/PDIF digital I/O, to accommodate all your sound sources. Advanced Dynamic Power Sharing and multimode lo-Z/hi-Z operation ensure maximum flexibility. The FX-125.4 sports an efficient, lightweight Class D design, which an Auto/Manual Power Saver Mode bolsters.