Here's one of the most versatile home theater receivers we've seen. The TX-NR905 delivers 140 full-bandwidth-rated watts per channel of high-current, low-impedance power, built on a foundation of impeccable Onkyo construction. You get decoding for the latest surround sound formats, including Dolby® TrueHD and DTS-HD™ Master Audio — two new high-resolution surround formats found on many newer Blu-ray players and discs. You'll also enjoy a host of entertainment options, including PC music, Internet radio, and flexible multi-room audiovideo possibilities. 140 watts x 7 into 8 ohms (20-20,000 Hz) at 0.05% THD THX® Ultra2 certification Dolby® TrueHD, DTS-HD™ Master Audio, Dolby® Digital Plus, DTS-HD™ High Resolution Audio, THX Surround EX®, Dolby® Digital EX, DTS-ES™, Pro Logic® IIx, and DTS Neo:6 decoding Analog-to-HDMI video upconversion (up to 1080p) with Silicon Optix Reon-VX HQV® video processing Audyssey Laboratories' MultEQ XT eight-point auto setup and room calibration system (microphone included) built-in HD Radio tuner with multi-casting reception XM Satellite Radio Ready (requires XM subscription and optional XM Mini-Tuner package) Neural™-THX Surround decoder for XM's HD Surround channels and gaming SIRIUS satellite radio capable (requires SIRIUS subscription and optional SiriusConnect™ home tuner kit) 192kHz/24-bit Burr Brown DACs for all channels back surround speaker channels re-assignable for bi-amping front left and right speakers back-surround and front channel speaker outputs bridgeable for higher power to front speakers (minimum 8 ohm speakers required) 40 AM/FM/XM/SIRIUS presets aluminum front panel learning/multibrand remote