best powercord for atma-sphere amps MA 1

If you don't already have the full bodied and well defined sound of the cello and the double bass with the MA-1, then your speaker/amp match is off or you have problems elsewhere upstream in your system.

A power cord is not going to make the difference.

for what it's worth, I use Cardas Golden Reference PC with good results. But as Tvad said, the MA-1 presented deep tight bass with all PC's i have used. The bigger issue is the speaker/amp interaction

Elrod Signature cords on my MA-1 Silver Edition/Coincident Total Eclipse combo and it did improve bass in depth and firmness. What a happy surprise it was, and well worth the money.

Do you have a dedicated line for each amp?