Yamaha natural sound stereo receiver rx 497 Specifications: -75 watts x 2 (stereo) into 8 ohms (20-20,000 Hz) at 0.04% THD -4-ohm capability allows use with a wide range of speakers -XM Satellite Radio Ready (requires XM subscription and optional XM tuner kit ) -40 AM/FM presets 3 audio (including phono) and 3 A/V (composite video) inputs -subwoofer output -tape monitor loop -rotary bass and treble controls continuously variable loudness control -Pure Direct mode bypasses tone, balance, and loudness controls for cleaner sound dual-room/dual-source output (stereo line-level output for 2nd room) multibrand remote control headphone jack front-panel and remote switching for two pairs of main speakers binding post speaker connectors sleep timer 17-1/8" x 5-15/16" x 12-13/16" weight: 19 lbs.