Me too with the thumbs-up for the 60s! I agree that the most surprising thing for me was the midrange. I had thought that the midrange was the only good thing about my old speakers, but the 60s proved that even that was bad! I also have noticed some extra brightness on a few CDs, all of them older recordings converted to digital, with lots of brass. I think my old speakers didn't have enough high end to reveal the bad recording, or the bad source. (Old JVC CD player - needs to be upgraded!)
But the beauty of the midrange! I haven't tired of it yet!
