This is a quick mockup comparison between the two using the Fender Clean 1 with stock compressor and opto tremolo. There is a slight volume gain in AT 4 which I had to bring down by a few notches to get the gains to sort of match.  No other FX were used. The file is 48k, 24bit. Download enabled in case anyone wantrs to analyze the raw file. FWIW.. I am hearing a slight difference and my ears are bad. But my understanding is the CS version does not use all the same sample resolution as SE, s