Features Yamaha's own unique Floating and Balanced Power Amplifier, utilizing MOSFETs, delivers powerful, highly dynamic sound filled with energy All-stage balanced transmission and low impedance, plus fully discrete amp construction reduce noise and eliminate signal transmission loss With its elegant design and beautiful level meters, the A-S2100 expresses in every way the lively dynamism of music, and the joy inside Description Product Description Style: A-S2100 | Color: Silver Stereo integrated amplifier in Silver