Hello ottablu, yes I spent a year with MkVI but decided to part with it. I used it with Mac C22 preamp and Focal Electra 1028BEs. It does have tremendous bass which is one of the most important issues for those who want to use tubes and listening mostly to blues or hard rock. Still it lacked dynamic, or speed, or punch - whatever one calls it - of SS amps. It was so obvious when I hooked up the SS amp to my system that I decided to stay with the letter. So for now this combination of SS power amp and Mac C22 makes me happy. C22 tubes gives me the softness and liquidity of the tube sound while SS amp gives me the punch. But I think that if your listening preferences lies mostly in chamber music or vocal probably you will be totally satisfied with Mac 275 MkVI But you know - you'll never find out how it sounds unless you try all this combinations yourself. It's time consuming, it's expensive sometimes, but it worth it!
