I currently have a studio 68 which is 24 bit. The new quantum es2 and es4 are both 24bit however the hd2 is 32bit. What does that mean in general, and more specifically, does it have any impact on speeding up the "export mixdown" process? (please note: I'm not after strategies/tricks for speeding up like transforming tracks to audio, just trying to understand if the hardware will make any difference). Thanks, Tony.