Rotel RA-1570 to Ayre AX-7e

You won't recognize your system. The Rotel is great, but the Ayre will be a major upgrade.

You can double up on the amp end with no problems. If I'm having new cables made, I do have them terminate both pairs at the amp end. It does make it easier, but you can do it either way. Also, make sure you use 1/4 inch spade connectors. Anything bigger won't fit in the barrier strip.