NAD - T 748 v2 Surround Receiver 7 x 40W Minimum Continuous Power into 4 / 8 Ohms, all channels driven simultaneously 20Hz  20kHz, with &lt;0.08%THD (NAD Full Disclosure Power) 80W x 2 (FTC) Power HDMI 1080p bandwidth with full On-Screen Display (OSD) Auto Setup and Calibration of speaker settings with supplied microphone Dolby TrueHD and DTS HD Master Audio lossless decoding