This post is just to give a little information on my experience with the new addition to my home theatre system, because I was so impressed that I felt I had to share it. I bought the Onkyo TX-SR502 receiver a few days ago and UPS delivered it yesterday. When I got home from work I eagerly took it out of the box and began to set it up. I replaced a KLH R7000 5.1 receiver, which never had very crisp sound in movies or music, with the Onkyo, which is a 6.1 receiver. I got the receiver setup and decided to see how much of a difference it would really make having the sixth rear surround speaker, rather than just the two rear left and right surrounds. I was pretty skeptical about it making much of a difference in the overall experience of the movie, so I wasn't expecting much. I put in Lord of the Rings, the scene where the group is running from the Balrok (the fire monster). In that scene, there are creatures firing arrows from all directions at the group, and I was absolutely shocked to hear how clearly the arrows sounded as they flew between the speakers. I never expected to hear them fly so clearly from the left surround, to the middle rear surround, and the right surround speakers. It was an absolutely huge upgrade from only 5.1 surround. Part of it was undoubtedly the upgrade in receiver, but that sixth speaker really makes a world of difference. I only wish now that I had the 7.1 system, because I can only imagine how good that must sound. Again, I just wanted to share my experience with anyone who may be trying to decide if it's worth it to get a 6.1 setup, and even those who already have one who I can now join in surround sound happiness with. Thanks for reading. On a side note, I absolutely recommend the Onkyo TX-SR502 to anyone looking for a great value on an awesome receiver. This thing truly sounds better than my brother's 850 dollar Denon.