I am trying to decide between two receivers Denon 1803, and Kenwood 6070 as far as specs go they are similar Denon 80w per channel/Kenwood 100w. They both have the features/inputs I need except that the Kenwood is THX certified thus featuring Thx surround EX. The Kenwood is a little more expensive but I certainly don't mind if the upgrade to THX cert is worth it. Is THX certification more than just dare I say a "marketing tool" or are the features it offer unique and valuable. What kind of audible difference does it make in movie soundtracks over a reciever that isn't THX certified? Thanks for the help.
