I was able to get my all my upgraded Cables (Pro series ) from Rick just before he closed up the operation in Texas. A lot of Audiophiles complain about the cost but,
there are more expensive Cables out there that dont perform as well. I was able to pay a reasonable price for my cables. Upgrade to something else ?. Be prepared to spend a lot more. I was able to get the latest edition Pro series Digital cable, a few months ago (AES/XLR), the best I have heard . HFC is the Reference Cable in my system from top to bottom. You can find some used stuff that pop up from time to time on Audiomart and here. All incredible , fantastic sound (if you can deal with the Wave Guides. The Power cords are Ridiculous 😍. Happy Listening, Enjoy the Music.