Audio Research with Vandersteen is a classic combination going back 40 years. Use the 8-ohm output tap on the V70 and it should be magical.
Call Richard Vandersteen and he will tell you the same.
Vandersteen 2ci with tube amps
What are your thoughts on tube pre and amp with the Vandersteen 2ci? I can acquire a Audio Research LS2 with a V70 from someone that is near me.