most clear, crisp sound power amps, monoblocks ?

Narcissi,

There's a lot of learned people on this forum who are willing to help but your criteria is seems too vague to permit them to render much assistance. Since you must have something in mind and I assume will know it when you hear it, I'd suggest that you visit several audio stores and audition some systems.

Good luck with your search.

When I think specifically of crisp and clear and not necessarily other "good" qualities of speakers and amps, I think of good electrostatics. The most capable I have heard for the cost is Sanders Sound. That's just my opinion.

stats, stats and only stats.

Sksos1-I would agree with you, provided the OTL saw the speaker and not the crossover.

You want LIVE music, very easy. Buy or keep all your cables with the same manufacture. Don't ever mix your audio system with different brands or generation. Your amp watt ratio must be at least 1.6 more the speaker max rating. If you buy the speaker rated 50 to 350 watts. your amp must be 500 watts or more. High end sound does not have to be high price. Just don't mix them up. Set your budget and start shop for new brand that you can afford.