I have a BAT VK200 and VK5i and love them. They are just so musical. I have owned quite a few amps and pre's and this combo is one of my favorites. I know what you are looking at is a few steps higher than mine but I can recommend BAT.
A friend of mine has a ML 334 and a VK500 and overall prefers the BAT.
A friend of mine has a ML 334 and a VK500 and overall prefers the BAT.