A footnote to the McCormack/Vandersteen banter.. Richard Vandersteen used the McCormack amps (DNA 1's I believe) at shows for quite a while. Don't know what they use now. As a former DNA1 Deluxe owner, I'm not sure if this is the best match possible with the Vandy's. Both products are on the laid back side IMO. I would agree with the Audio Research VT100 MkII as I have heard both the 2 Sig's and 3 Sig's with this amp. The D series amps would also be an interesting choice and the higher powered versions make swell space heaters. You can camp out around them during the winter months.