Amp to Add Dynamics & Detail to 'Polite' Speakers


I'm looking for an amp that excels in dynamics and detail - I'd like to impart some 'life' or 'zip' into speakers best characterized as a bit 'polite' sounding. Looking for nicely extended highs with slightly lean and tight upper-bass.

I'm taking a little hiatus from tubes, so solid state or class d amps only. I figure around 250 WPC into 4 ohms and around $3k new or used.

What else can be done to push a system in this direction - silver cables?

Thanks for any suggestions.
128x128srosenberg
What speakers are we talking about? Of course, my experience is very limited, but generally speaking I don't think that you can completely change the character of the speakers by going with a different amp.

Of course, if you speakers are being under driven, that may be a different matter entirely.

So, what speakers are you running?
You may not change their character but you may very well change/realize their potential.
I'm pretty sure I saw a few Krell KAV 250's listed here. I used to have one and liked it very much. It should easily do what you are asking. You can get one for a lot less than your max budget.
Agree with others that it would be most helpful if you listed your current components and interconnects/cables. That said, if you're using some polite copper interconnects swapping them for silver interconnects that possess the characteristics you're looking for can push your system in that direction. Again, without knowing the rest of your system this is a complete crapshoot.