I remember my 93 Khorns and using an Adcom GFA585LE with them. I once saw a picture of PWK powering a pair of LaScalas with an Adcom GFA555 and knew I had a good match. Speaker cable was either cheap Monster clear jacket or lamp cord...I go with the lamp cord.
As was mentioned above, the Klipsch Communty is full of information for you, I've been a member there since 2000. Enjoy the Jubes, cheers.