It will definitely improve. Do you use the balanced outputs?
My biggest issue with the Sony was slightly recessed mid-range with accentuated upper mids. I'm guessing the rest of your system has some warmth to it? Mine is pretty flat and just takes on the character of the source. Mostly it was the upper mid bump that eventually wore on my nerves. Otherwise I agree it is an awesome player. I've never heard such control, dynamics, and detail in a player of that cost. Alas, I was forever tweaking the system to get it to behave the way I wanted and eventually decided I should be reading about music and buying cd's instead of reading reviews and buying power cables so I moved on. My Arcam is due to arrive today so we'll see if I made a mistake. When I auditioned the less expensive Arcam CD17 in my system it sounded just like my old XA7ES, that's what got me to pull the trigger on the CD37.