I've he's used ARC ref or Cary V12 amps for the van 5's, and mccormack's with the 3a's. I've owned the 3aSigs and greatly favored the dna1reva amp with them. I'd go for a mccormack dna 1,2,225. I preferred it to my vt100 with the 3aSigs (vt100 didn't have the authority). Either amp was pretty good. There just seemed to be a synergy with the dna's. I know mccormack uses a 3aSigs to voice the RevABC dna's at their hotrod shop.
