Isolation Transformer “Refinements”

Hoping this link works http://www2.schneider-electric.com/resources/sites/SCHNEIDER_ELECTRIC/content/live/FAQS/123000/FA123...

Nice. One thing to notice is how low the filtering occurs at.

Another device, much less expensive, which achieves similar results is a series mode surge suppressor such as from Furman or Brickwall which has a -3 dB point somewhere around 3 kHz if memory serves.

Best,
Erik

A good sounding filter block (complex LCR of complete device) is one of the great tricks of the trade in power line filtering/enhancement markets.

Medical and pro gear built for such -- tends to be degrading in sonics as much as they filter power.

Wrong kind of lore for the wrong scenario.

Teo, what causes this?