I recently replaced my JC1+ amps with ARC 160Ms and am delighted with them. I was using a pair of Shunyata Sigma V2 power cords with great results, but of course I need 20 amp plugs instead of the 15 amp I have. I could try the Shunyata C15 to C19 adapters for a few hundred dollar investment to get a feel of how the Sigma V2s would sound with the 160Ms, but I am unsure what effect the adapters have. What do others think about the adapters as a permanent or trial solution? Has anyone done a shootout with power cords with the 160Ms? I realize each cable has a unique effect in each system, but I was looking to narrow my choices. Thanks.