I use the V4s to run my Vandersteen 3A signatures (also 87db, I believe). They are fantastic amps -- warm, rich, never fatiguing, built like tanks, and they barely need biasing. Mike Sanders is also a pleasure to deal with.
They are not the most powerful amps, however, so think carefully about your listening habits and room size. I had some clipping problems before I added powered subwoofers to my system, which allowed the V4s to concentrate on the mid and upper frequencies (which is what they do best).
They are not the most powerful amps, however, so think carefully about your listening habits and room size. I had some clipping problems before I added powered subwoofers to my system, which allowed the V4s to concentrate on the mid and upper frequencies (which is what they do best).