Musical Int. Amp that has exstended natural treble

I am looking for recommendations. I have plenty of opportunities to audition in NYC or NJ, but I want to zero in on something I'd like.
My sound taste is YBA-balance with more, much more treble extension.
Music Hall amp has great treble but nothing else.
I would appreciate if someone thinks of an integrated amp that has realistic treble and mid without limitation. I am not looking for warm sound, tube sound or bass extension.
I am looking for an amp that makes piano sound real as well as violins sound like they have strings. Realism and presence.
Please advise.