Do some (most?) AV receivers convert analog inputs to digital first before converting back to analog for output? Specifcally, does the Marantz SR4200 do this? The reason I ask is I'm about to get a DAC (TAG DAC 20) to improve my CD player (or possibly use it to get decent CD playback from my DVD player) but it would rather defeat the object if there's a whole other A/D and D/A conversion going on inside the receiver. On the one hand doing this would seem silly but on the other, how could the SR4200 do DPL II and all the other bells and whistles on a 2 channel analog signal if it didn't convert it to digital first? Now, if it does convert to digital, does using the 'source direct' option on the SR4200 (which disables all the DSP modes like DPL II etc) skip the extra conversion for analog inputs? Michael.