Onkyo TX SR606 7.1 channel Receiver

This is an excellent receiver with 7.1 channel home theater system in its price range. SR606 also have 4 HDMI 1.3a inputs which is must these days with all HDTV viewing we do. Other standard features include AM/FM radio, Sirius Satellite Radio Ready. Like many receiver in this category, it has its own Audyssey 2EQ for Loudness Correction, which is a great feature for sound adjustment based on room size. Another cool feature is HDMI 1080i up scaling powered by Faroujda DCDi Edge. With one remote you can handle receiver as well as TV, DVD player, cable box etc. It also has a feature, zone 2 listening, where you can put 2 speakers in some other room to listen to music.
The only drawback I have found so far is, when you use this for 5.1 speakers only. Since it has a 7.1 capability, there are 7+1 inputs for Front right, center, front left, subwoofer, surround right, surround left, surround left back and surround right back. Since I wanted to use only 5.1, I did all front, center and woofer. Now for the back, I connected wires to surround back left and surround back right, However it kept giving me speaker error, I tried many things (changing wires, speakers etc.) but it keep giving error. I called my speaker's company saying there is problem with wires. However even with new wires it keeps giving speaker error. I emailed onkyo but no reply even after 4-5 weeks (I finally have to call and wait for 15- 20 minutes to get an answer). After some extensive internet search, I found that you might have to use surround right and left for 5.1 speakers. It is not explained any where in the manual. SO IF YOU ARE USING ONLY 5.1 CONNECT FIRST SURROUND LEFT AND SURROUND RIGHT EVEN IF YOU PLACE THEM IN BACK. However you can use it as 6.1 as well as 7.1 speakers too. Although this a minor issue, it gave me a HARD time for one whole week. I hope this review help somebody with the same problem. Despite this drawback I still feels this is an excellent speaker.