Maintosh MA6900 and speaker pairing


Hi just picked up a McIntosh MA6900.  What would be some good speakers I can pair it with that would offer clear high and mids?  I am looking to spend no more than $5k. Can be use or new?  Thx 
ucdmac122005
I have a 6700. I looked at a bunch of different speakers and Martin Logan sounded best. Great soundstage, detail and plenty of bass. 
I have a lMC MA6600 and drive GE Triton Ones with excellent sound. I will soon be using the integrated with a pair of JBL L100 Classic speakers for a change of flavor.  Still waiting on them.