best amp for Martin logan sl-3

I push my SL-3's with a Sunfire Cinema Grand, using the 3rd and 4th channels on the amp for the woofers (bi-amping) with great success. The amp is relatively inexpensive, incredibly flexible and power output is phenominal. Using the bi-amp method you put nearly 800 watts to each speaker. I am currently looking for a tube pre to "warm up" the sound. I think most SL-3 owners will agree the speakers sound even better with tubes up front.

I'm using a McCormack DNA 1/Rev B and am quite pleased with the sound. I had upgraded from the DNA .5 and tried the Plinius 100 before setlling on the bigger McCormack. As with all things audio, YMMV and trust your ears.

Just kooked up my MLs with Bryston 7Bs. Dual Monoblocks @ about 900 watts per. They sound excellant,presentation is fantastic, and they run cool. You do not need full power....

I have to think you are on the right track in considering one of the Audio Research VT100 iterations. I am getting by fairly nicely with a McCormack DNA .5 Deluxe, but I have a fairly small room. I am considering moving to a VT100. Keep in mind that room size is a major factor in determining how much power you will need.

I was running my CLS's with a DNA1 Deluxe, it did well up to a point. All big balls tubes amps that I tried were superior to the McCormack and several other, higher powered solid state amps. Give some big ball tube amps a try... Wolcotts, SF Power 3's and the like. They all are a little different but all will really open up your Logans. Don't get me wrong, there are some good solid state amps mentioned here (some mediocre amps, too) and they will sound good, but good high powered tube amps will take you to another place. Compare both types in your system. To answer your question, the ARC VT 100 will drive your speakers with no problem (tried a VT100MkII with my speakers, no problem). This amp was good, although not my choice. Some good deals on Wolcott's, Sonic Frontiers and used VT100 MkII's right now.