Speakers for under $10k used?

I'd recommend researching the right amp first. Like a speaker, an amp does not necessarily have the same sonic strengths across the frequency spectrum.

Once you've settled on an amp, it then becomes easier to find the right speakers to match your amp.

If you are bent on spending $10k on a used pair of quality-oriented speakers, then it should matter very little what type of music you enjoy, or even what size room you have, unless of course the room is abnormally small or large.

Speakers in this price range and up should excel with most any type of music.

-IMO

Has anyone listened to the JM Lab utopia BE models, that are in this range, used? Micro, Diva, Alto?

I've heard the Altos (short audition) and the Micros for a very long audition. Was thinking, very strongly on the Micros, but decided on the Harmonic Precision Caravelles. The Micro Be, until I heard the Caravelles, were the best damn mini monitor I had ever heard. You can read my review on the Caravelles. Actually the Caravelle's bass went tete a tete with the Altos, as well, as did the sound. Hard to believe, I know.

You have to do yourself a favor and try to hear
the Green Mountain Continuum 3's at this price point.

Thanks for your info guys!!!