• 85 W x 2-ch (20 Hz - 20 kHz)
• Digital audio inputs for TV and Blu-ray Disc™ player
• Pure Direct mode for greater sound purity
• ToP-ART (Total Purity Audio Reproduction Technology) and high quality parts
• I/O (input to output) direct symmetrical design
• ART (Anti-Resonance and Tough) Base
• Custom-made power transformer / 12,000 µF block capacitors / extruded aluminum heat sinks
• Gold-plated speaker terminals and RCA terminals
• Simple yet sophisticated design (aluminum front panel)
• Continuously Variable Loudness Control

This is a used Yamaha A-S501. I purchased it new in 2020 but I no longer have a use for it as I've gone to a 7.1.2 system. It comes with the original remote. There is no damage to it. Cosmetically it is mint. It is 100% working as it did when new. I used it as a 2.1 setup and it is excellent at driving anything I paired it with including 4 ohm nominal speakers.