yea the eq pots were all filtered to help with effects , i remember the engineer in a club i used to play had to put the talk over button and the tape a beer lid over it so djs could not put back on it knocks 4 db off the mixer.
was always a better sound that came off the 500 but really they do seem to have cracked it with the 800 i like the sound that comes off it but then again its never gunna be an allen and heath hahahaha.