I'm using a Thor Audio TA-1000 preamp with my Vandersteen 5s and am very happy. The Thor has great dynamics, a wide soundstage, great imaging and detail.
As far as amps are concerned, I'm using a Bruce Moore Dual 70 stereo amp drive the Vandys in a medium sized room. Bruce Moore makes a pair of 120 watt monoblocks which are just amazing. Contact Bob Bergner at www.rbaudio.com for further details. The Dual 70 can also be converted to monoblock operation if you don't need 120 watts.
Hope this helps.
As far as amps are concerned, I'm using a Bruce Moore Dual 70 stereo amp drive the Vandys in a medium sized room. Bruce Moore makes a pair of 120 watt monoblocks which are just amazing. Contact Bob Bergner at www.rbaudio.com for further details. The Dual 70 can also be converted to monoblock operation if you don't need 120 watts.
Hope this helps.