Help with JBL c60 Soveregin s8r speakers???

Hey Guys.

I recently came across the craigslist find of a lifetime a set of JBL c60's with the s8r driver package. I would love to talk with anyone that has experience with these. So far the sound is pretty good and i know it is to be some of the best. The giant 375 mid horns are ear piercing loud, i have played with the crossovers and tamed them a bit but still... I would like to ask about the best way to run these i read alot about tri amping and using a active crossover and cutting out the lx5 and n7000. My first try at listing was thru my pioneer sx-1050, with a moscode super it phono pre that did not go well at all. Now they are hooked up to a adcom gfa-555 sounds better but not great. A am starting to fear i cannot afford these speakers, meaning yes i have them, great, but now what.. The gear to run these guys well may be out of my reach. Again please let me know if ya know anything about these JBL's.. Thanks for your time
Zack