I am powering a T+A SDV 3100 HV with two Triode Wire Labs "Obsession-Statement Series" (15 amp) cables and have been extremely happy with them. Reach out to Pete and see what he can do for you. He is well respected in the industry, charges very reasonable prices, and is easy to work with. The Obsession isn't listed with a 20 amp option on his website, but tell Pete what you are up to and let him make a recommendation or two. Good luck!
