NAD Electronics T775 HD 100wpc A/V Surround Sound Receiver 7 x 100 Minimum Continuous Power into 4 / 8 ohms, all channels driven similtaneously 20Hz-29kHz with &lt;0.5% MDC Modular Design Construcion allows future upgrades Lossless decoding: Dolby True HD and DTS-Master Audio. Dolby Digital, Dolby Digital Plus, Pro Logic II Auto Setup and Calibration of all speaker settings using suppied microphonel Audyssey MultEQ XT Room Correction Digital Inputs available as 2 channel analog mixdown on Zone 2 output.