I have owned the Cary 303/100 and 306/100. I have on order a 306/200. My pre-amp is tube and my amp solid state. The 303 is an excellent player in its price range. The 306 is musically far superior which accounts for its $2000 higher retail. The 306 has better bass and smoother mids and highs than the 303. I have not heard the 306/200. I was told by several reliable sources that the 306/200 has slightly better resolution and is more analog sounding than the 306/100. I play most styles of music and have not been disappointed by any Cary CD player purchase. In my system, the Cary offers a warm, full sound, with a lot of resolution and excellent soundstage. Hope this helps!
Jim
Jim