I have a P-5 pre running into a Bryston amp, and I am in the same boat as you trying to find good cable matchs. I don't know how balanced your system is at the moment, but I was uncomfortably in need of some warmth. Switched to HT truthlink from cd to P-5 and that was a near perfect match. The silway could work for you if you don't need to warm things up. I am looking at thoese for my P-5 to Amp xlr run, also the Pro-9's for speaker.
There are a lot of posts about AZ vs. HT cables. Could try the cable company and see what they recommend.
There are a lot of posts about AZ vs. HT cables. Could try the cable company and see what they recommend.