Do you other AMV-20 owners know if you can select just THX processing for DD 5.1? What I want is to not use THX Ultra2 for some movies. If a movie is only 5.1, I want to listen to it in 5.1. If I watch it with THX Ultra 2, it sends the signal to all 7 speakers. But, I'd like to have the Re-EQ and Timber matching of THX on the DD 5.1. The manual seems to say this is possible, but I can only turn THX Ultra 2 on and off. So does this mean that THX is automaticly on and all you do when turn on and off ULTRA2 is switch it from THX to THX Ultra2? Same thing with DTX ES titles, I'd like to switch between Ultra2 and regular THX. Is that possible, or should I have ultra2 on for DTS ES movies?