Best means of isolating digital equipment i.e. DACs, CD transports, wall warts etc.


Is it better to route these digital noise polluters through a conditioner, isolation transformer or both in series?  Is a "digital" power cord sufficient by itself or could it be used with any of the above without negative side effects?  There are a lot of anecdotal observations in many old threads.  Can anyone help clarify based on what they have found?  I'm getting ready to add a dedicated circuit for my audio system and will be reconfiguring power cable connections.
jc4659
I'll give it a shot.

Wall-Warts have not been "a small transformer, diodes and cap", with rare exception for quite some time. Most are switch mode supplies not due to the requirement of universal operation and cost.
I am trying to use language that he will understand, using his particular vernacular, except i tend to be more targeted where he just insults everyone :-)   
cal37131,132 posts01-10-2021 9:57pm@audio2design It would make the forums a better place if you could post disagreements and corrections without appending personal attacks.


putting the DAC on the clean or dirty side depends on two or three issues.

Linear or switching power supply?, Switch = dirty

Ladder or chip ?, IF chip with Faraday cage = clean,  IF not then dirty

Chip vs. analog display or switching ? see ARC and Aesthetix defeat of those w improved sonics, otherwise = dirty

finally listen

always use a quality power conditioning and a dedicated line for dirty


 i did a quick Craigslist search for MSB, DCS, Aesthetix, Benchmark and Bricasti...Weiss, Wadia Pro, etc...no luck...must be the musings of a wishful egotist...
but to come back and nail down your question a bit more. In my reference system I have essentially 3 dedicated circuits back to the panel for audio: Low level analog w power conditioning, Digital wall warts, server ( even w linear supply as it has no Faraday cage ) , streamer, network switch all on a seperate line and power conditioning, finally monoblocks w no conditioning on a third line ( split from 240 ).

experiment and listen