Sony STR-DA3300ES ES 7.1 Channel Surround Sound Audio/Video Receiver (Discontinued by Manufacturer) Xross Media Bar- inspired graphic user interface Faroudja- DCDi Cinema Up Scaling Technology BRAVIA- Theatre Sync 100Watts X 7 Amp Power(8 ohms,20Hz-20Khz,0.09% THD) Digital Cinema Auto Calibration w/Mono Mic