I can wholeheartedly second that, Martin(Macca) put me onto Krell amps when I had been having similar issues, after changing a few amps over 2-3 years and became a bit confused and fed up.
I have a KSA-80 and it is superb, very neutral, a lovely open sound stage, and produces great detail, bass control is the best I have ever had. Since buying it I have chained to a better phon-stage and a SACD player and in each cases it just gave more proving the amp is great.
The KSA-100 is very good from what I have been told and read.

