hello to all of you, E As a new member to the site,let me thank you for the very useful information i got so far as a visiting guest. Could you indicate to me where i can find interesting threads regarding the pros and cons of getting a GPA 604 serie II vs III vs vintage 604E.I am using a set of SE 300 B Shindo amplifier and listen to classical and Jazz music in a18 square meters room(12x16) acoustically treated.Thanks for your help. Charles.