Summary: Excellent in all functions, except Zone 2, which isn't working and there are several other owners with the same problem. The SR606 powers a Klipsch Quintet SL Home theater system and two Infinity bookshelves, along with Klipsch 12" powered subwoofer. Probably one of the best mid range set ups you can get for a home theatre. Nice variety of inputs in the back. If Zone 2 was working, this would get a 5 star rating.
Summary: To the top reviewer. Zone 2 amplifiers in all onkyos are 2 channel stereo amplifiers. just hook up a red white rca cable as well as your digital cables for each device you have connected to the receiver and you will have the joy of independent sources for zone 1 and zone 2. there is no need for digital audio in a stereo speaker setup throughout your house. I think onkyo handled this brilliantly and keeps their costs low in the process...
Summary: Pros: Zone 2 can play a difference source than the main receiver. Up-converting works well, even for my 4:3 HD-Ready TV. Sound setup was easy. Volume control in small increments. Surround sound works way better than my old Dolby Pro Logic receiver (worth doing an upgrade). Cons: No down-converting for recording programming.
Summary: I purchased this unit for $399 about a week ago after returning a defective Yamaha 2700 which was double the $$. I've never owned a Onkyo (always denon or Yamaha) but I wanted to give Onkyo a try after all the good reviews and I needed a reciever my wife could figure out without having to read the manual. I can say that I am happy with the purchase! The unit does everthing well and is easy to use/ set up.
Summary: After buying an LCD HDTV decided to upgrade my audio. Had a 5.1 system with a Harmon/Kardon, and Cambridge Soundworks speakers. Researched and watched the prices for a few months and decided on the Onkyo, and also upgrading the speakers. When the price of the upconverting Onkyo came down enough I bought it. Very good unit. The sound is noticeably better than with the Harmon/Kardon. Setup was not a snap, but not too hard.
Summary: As reviewer R L "A father in Pennsylvania" pointed out, this is a great receiver, but Zone 2 is definitely flawed. Not being able to play digital sources in Zone 2 is a big disappointment. I didn't plan on using any analog sources till I discovered this. Now for two sources, I have digital and analog going to the receiver, which just makes the mess of cables even worse. If I knew about this beforehand, I wouldn't have purchased this receiver.
Summary: The first unit I bought from Amazon Warehouse was DOA which I just chalked up as one that slipped past a simple on/off inspection test. Amazon's customer service was stellar in getting me a replacement in short order with no hassles. I can not say the same for Onkyo. I bought the 674 to replace the 601 that I have been very happy with. When I upgraded to the hi-def 1080p display the new SR674 was for HDMI and upconverting connectivity.
Summary: The good: the audio setup is a breeze with the included microphone, the HDMI switching works fine with my HD sources (an up-converting DVD player and a DirecTV DVR), the audio and video quality are excellent. And the price is under $500. The bad: there are only 4 video input ports available on the back of the unit. In spite of its having 4 composite, 3 component, and 2 HDMI ports, you can still only have a total of 4 in use.
Summary: The Onkyo TX-SR674 is an excellent home theater A/V Receiver, with all of the features I was looking for, with only one exception.....no phono input. However, that was an easy work around with a seperate pre-amp to one of the extra inputs. I used the extra rear speaker outputs to drive multi-room speakers for a whole house sound system. The audio calibration system was easy to use and gave us great results in setting up the 5.1 speaker system in our family room.