Integrated Amp. for Fritzspeakers Carbon 7

So far I was listening Carbon 7 with NAD C275 and Rogue Audio
Perseus Preamp tube preamp. Bass is deep and tight but highs
are kind of rolled off, maybe because of tubes. Anyhow I want
it replaced with good Integrated Amplifier. I was thinking to
try with NAD M3. Any other suggestions, I would really
appreciate opinions. Thanks in advance.