Thanks for replay - I need suggestions about difference in sound between Denon 710 and Marantz 6003 or 7003 - I know the specifics, but some people says they are sounding almost the same...
I'm reminded of a joke that one of my sick twisted friends used to tell -
Q: What is the difference between a Duck?
A: One is both the same.
That makes about as much sense as your question, sort of, more or less, kind of, in a way.
While these companies might be owned by the same parent company, this isn't like cars where a Mercury is really a Ford in disguise. The amps are made by separate independent companies, each with their own separate design teams, and each with their own design philosophy. They are NOT the same amp, and they no more sound alike than any amp sounds like any other amp.
And if they do sound alike, doesn't that make your life easier instead of harder? I'm not seeing the problem.
Whether they sound the same or different is irrelevant, what matters is which one do you like, and the only way to determine that is to press your ears into service.
It doesn't even matter which sounds best, it only matters which sounds best
to you.
To my knowledge neither of these amps is exceptionally or noticeably bright or warm. Both are well regarded as are Yamaha, NAD, Cambridge, and many others.
Do they all sound the same? Sort of.
Do they all sound different? Sort of.
Beyond that, only your ears can tell you what you need to know.
Steve/bluewizard