Summary: I purchased this unit and after about 4 months time it malfunctioned and produced no audio. Because the unit was under warranty, I sent it to be repaired by one of Onkyo's authorized repair facilities.
Summary: I purchased the silver SR-605 and started using it in a simple home theater setup in November 2008. It performed fairly well at first, but maybe I only thought that because it was my first attempt at building a 7.1 channel system.
Summary: Bottom line of my experience is their service, support and warranty people have no interest in making a serious problem right. Up until my problem occurred I really liked the receiver, but once it failed the experience left a really bad taste in my mouth.
Summary: I thought I had performed a thorough evaluation of home theater receivers, Onkyo seemed to have great ratings and a good "bang for buck" value. I however got a lemon, and have found out that 30% of the units are bad for HDMI operation. Google "Onkyo popping".
Summary: Receiver's tuner and video card inop after 45 days. The unit was then shipped to an authorized repair center. The repair center indictated the unit damage "pointed to a surge" and repairs would cost more than a replacement and was not covered under warranty.
Summary: Don't believe the hype with this receiver. First off, HDMI 1.3 in a receiver is useless at this point. If your HD-DVD player or Blu-Ray player does the decoding of DTS-HD Master Audio or Dolby True-HD then the receiver will receive the signal as uncompressed PCM.