Yamaha RX-397B Stereo Receiver

Sound Quality Up to Yamaha Standard with Pure Direct, Linear Damping, High Dynamic Power and Advanced Circuits.

• 55W x 2 (max), 50W x 2 (RMS) high power output
• Pure Direct for short and direct signal path
• Discrete amplifier configuration
• High dynamic power, low-impedance drive capability

http://europe.yamaha.com/en/products/audio_visual/hifi_components/stereo_receivers/rx_397_black_g/?mode=overview