How does one wire this NAD amp to an EP125? The Axiom manual has a lot of ifs but nothing that strikes me as firm. I'm afraid I just don't know enough about subs.

http://nadelectronics.com/products/hifi-amplifiers/C-326BEE-Stereo-Integrated-Amplifier

Ken's right.

Just connect SUB 1 on the NAD to the RCA input on the EP125.