I would recommend Speltz Anticables for the speakers. The original Anticables were about $80 for an 8 ft. pair. I had to spend a lot more to get better sound--like over $600. I tired a couple cables that listed for over $1400 and still preferred the Anti's to them. The original Darwin Silver ICs were considerably better than anything near their price range. I tried quite a few of the more popular ICs. Amadi Maddie Signature ICs are very close. I have some used Darwin's and Amadi's if you were interested in trying them out.
Bob
Bob