AC cables for Atmasphere MA1s, MP1?

The A-S amps will sound slightly different with different power cords, as will all electronics I've ever used. The generic cords A-S supplies with the amps sound okay. Other cords sound better. But the amps are NOT finicky and do NOT "require a well matched cord" as stated by Sonic_genius.

As Essentialaudio says, some cords offer better sound than others. And this is true with any piece of gear offering the neutrality and resolving capabilities similar to A-S.

Sonic_genius, if you owned Fourier amps you know very well what 'finicky' is. I owned one of their stereo amps for a short time. It was constantly blowing up: decent parts quality but atrocious layout, workmanship, and mechanical design, not to mention components such as output coupling caps used beyond their specified operating range...in other words, a ticking time bomb destined to fail. You should have seen the overwhelming number of amps lined up along and below the benches at Fourier for repair! Tom was a nice enough guy but didn't know how to run a business, and Bryan Carey who took over near the end was far worse IMO.

I gave it away in disgust and moved on to Atma-Sphere. Completely different animals. Sound great, ultra reliable and stable. So as your comment implied, you have not owned Atma-Sphere.

Thank everyone for trying to answer my question.

I'll contact the Cable Company and will post my results when I'm finished listening.

Does the S30 like silver power cables or copper?

Does the S30 like silver power cables or copper?

I tried siver and copper power cords witm M-60, both were ok. The amps don't care what you use.
Whatever you use, look for good Plugs. I use Oyaide .
There are the main differences (good grip).