I heard the ES80's at J&R Music. I thought they sounded clearer than the Polk I heard in that price range. (Think it was the
RT1 A5) The Polk had better bottom but sounded dull. The JBL's had no bottom and the highs were not smooth but it still sounded clearer than the Polk. The ES80's were $299 each and the ES90 in black ONLY was also $299. Can't imagine a $600 pair of speakers coming anywhere near even what the M60's should be.