15 watt per channel TPA3116D2 Class D amplifier. Solid Die-Cast aluminum chassis coated in textured enamel paint. Two coats of gloss clear coat enamel. Antiqued brass faux "steam power" gauge. Weathered look brass power switch and matching brass accent "rivets" on top. Gold plated five way insulated binding posts. Gold plated RCA connectors. Wired with teflon coated, twisted solid copper wire & WBT silver solder. Elastomer isolation feet. Circuit board is mounted on neoprene isolation washers for maximum vibration dissipation. Comes with high quality 12Volt/5amp external power supply.