You just need to play and see what you like. My favorite amp with out breaking the buget was the quicksilver v4 for that speaker. I used that amp wit hthe 3 the 3 an the 5a. it was the one piece of equipnemtn I was satified with. I did originally have rca and did upgrade to balanced, I recomend the balance.
What about power for Vandersteen 2 speakers?
I have three amps I can use, 50w YBA, 100w Krell and 200 wpc Rotel. I listen to jazz in a small room and as long as I don't get silly with the volume the smallest amp sounds the best. I know Vandersteen rates the speaker between 40-160w but it works fine with the 50w YBA amp. Is it better to use more power or should I stick with the better sounding YBA?