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
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.
thanks for the inputs, all... much appreciated. the gear in play is as follows: B&W 802D speakers, Acoustic Zen Satori speaker wires, Acoustic Zen Silver Reference 2 and Acoustic Zen Matrix Reference 2 ICs, Placette preamp.

sorry about the vagueness of the question - i posted to get general thoughts on moving a system in the direction i'm looking for. any further thoughts given how things are configured would be appreciated.