Thoughts on this PSU?

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greg7

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Joined 2003
Exogal Comet PSU.jpg

What are your thoughts on this PSU? Good? Can it be improved upon as far as sound quality if I go to a linear PSU? It's a commercial unit for my DAC and I won't lie, I'm disappointed that it uses a switching PSU, albeit with 80,000uF of filter capacitance. I guess it's actually a is a hybrid supply, using the high frequency switching side to feed a linear regulator chip on the right side (that LT1764A). Can switching PSUs for low current apps like a DAC sound as good as linear PSU's?
 
mcandmar

mcandmar

Member
Joined 2012
A generic off the shelf switching power supply, feeding into a metric crap ton of capacitance before a linear regulator. No.

I don't see any earth connection on the IEC input either which isn't good, and who knows what potential the DC is floating at in relation to ground. Hard pass from me.
 
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