I had one once, a grey one so it was one of the later versions. Very impressive bass, but a quite colored amp overall. Have you ever seen the movie Willie Wonka and the Chocolate Factory, or any other Technicolor movie of that era, where the colors are brighter than in real life, so much so that it is distracting and annoying? That's kind of the way Krells sound to me, at least as close as I can describe it. They have an "impressive" sound with great "jump factor", but it gets tiresome because it's not natural. Lest you think I like my sound soft and rounded off, nothing could be further from the truth. I value true dynamics more than most listeners on my personal list of priorities.
The other issue, perhaps more serious, is that it was hands down the least reliable amp I've ever owned. I had to ship it across the country and back TWICE in the short time I owned it (less than a year, if I recall) due to major power-supply malfunctions (the kind that can kill speakers when they let go, although mine survived). As you can imagine, this can get expensive. Perhaps I just got a lemon, I will never know, but this kind of behavior is simply unacceptable in an amp of this power level and price.
Sorry to be so discouraging, but I think you can do much better. Consider McCormack or Marsh or Bryston ST or Ayre in this price range, they aren't perfect but they're a lot closer IMO.
The other issue, perhaps more serious, is that it was hands down the least reliable amp I've ever owned. I had to ship it across the country and back TWICE in the short time I owned it (less than a year, if I recall) due to major power-supply malfunctions (the kind that can kill speakers when they let go, although mine survived). As you can imagine, this can get expensive. Perhaps I just got a lemon, I will never know, but this kind of behavior is simply unacceptable in an amp of this power level and price.
Sorry to be so discouraging, but I think you can do much better. Consider McCormack or Marsh or Bryston ST or Ayre in this price range, they aren't perfect but they're a lot closer IMO.