You have obviously enjoyed your KN5000 so you know what it has to offer.The KN6000 & 6500 are streets ahead of the 5000, can you imagine what the next Technics flagship is going to be like forget the Gem on two points.
1. The Gem is expensive
2. At sometime in the not too distant future when the new Technics arrives you will want one & the Gem will be old meat.
Johnnie