I used to have the Vandersteen 3A's. I used 4 monoblocks to drive them. Two per speaker, one for lows one for highs. The ones I used were the SM-70. It was most amazing sound to me.
You should be able to get 4 of them for $3K. They sell direct: www.monarchyaudio.com. Email them and they will offer you lower than list price.
You should be able to get 4 of them for $3K. They sell direct: www.monarchyaudio.com. Email them and they will offer you lower than list price.