Yamaha A-S501 Natural Sound Integrated Stereo Amplifier Silver Used from Japan
○ RIAA equalizer deviation PHONO MM: ±0.5dB. New YAMAHA A-S501 Integrated Amplifier Japan. ○ CD direct amplifier & pure direct switch that enhances the purity of sound. ○ Powerful power amplifier based on the "ToP-ART" philosophy.