Just to sum up because I've been rambling a bit, I would like to see; 1. Upmixing, downmixing and LFE mixing configurable independantly. (personally I think upmixing belongs as a toggle switch in the applet and not in a config file but that's not really important) 2. LFE mixing to always take place regardless of the existence of a discrete LFE track (I was wrong earlier when I said this is already the case) 3. Downmixed 'virtual' channels increased a little in output or configurable (not a deal breaker) Thanks Dom