Denon AVR-1709 7.1-Channel Multi-Zone Home Theater Receiver (Discontinued by Manufacturer) 80 watts x 7 into 8 ohms (20-20,000 Hz) at 0.08% THD Dolby Digital EX, DTS-ES, Pro Logic IIx, and DTS Neo - 6 decoding Audyssey Laboratories' MultEQ six-point auto setup and room calibration system (microphone included) iPod integration (requires optional Denon ASD-11R, ASD-3N, or ASD-3W) Compressed Audio Restorer for better sound with MP3 files