"Absolute best" used speaker for $8-10K

Hard to beat Merlin VSM-MX for voice and acoustic. They have avery tight low end down to 30Hz or so (w/the BAM unit) You would think the room might be too big, but you would need to speak with Bobby at Merlin - he'll give you the straight scoop.

Zu Definition will get you there. Check out the new reviews on 6moons

I second the recommendation on the JM Lab Altos.

I gotta second the Zu Definitions. AND, that's a big AND--you can have them for $9k in a choice of colors brand spanking new with a 60 day money back guarantee. Can't beat that with a stick. Check out their website as well as the archives....fasten your seatbelt: this list will get very long and very different. It's the nature of your question...good luck. Let us know what your decide on...peace, warren :)

You could definitely get the Dunlavy SC-Vs for that or perhaps the SC-VIs. They are huge speakers, but really have no sonic equal at this price point( but it does require enough room space to let them breath).