All Linear Power -- Possible?

[opus101]

12 hours ago, GUTB said:

 

Switching power is the enemy of audio because it gets high-frequency hash into the audio circuit and AC mains, has problems with ground loop formation, etc. 

 

Some clarification here wouldn't go amiss. Off-line switching power is the enemy of unbalanced audio interconnection for the reason of common-ground impedance coupling of ultrasonic hash into cable shields. Go balanced and there's no issue.