I am currently using a BAT VK3i pre-amp (tube) and a Marsh MSD a400s amp (ss). Great sound. Tried various ss combos, but like this the best. I had a Music Fidelity A3CR pre-amp before and it was very good, but A-B'ed it for several and all picked the BAT. I think the 100v2's are one of the true audio bargins. My wife and I auditioned many speakers in the $1k to $4k range and found these to be the most pleasing esp with jazz, blues, and female vocals. (Hooked up to Sony C333ES CD player, ML 36 DAC, Nordost Blue Heaven (XLR) IC's and Kimber 8TC speaker cables (bi-wired).