<div dir="ltr">What's up Barry?<div><br></div><div>The high frequencies are such a bad thing: although I have seen people mentioning above and elsewhere that they are above audio rate, no one mentions the extremely bad resonances they cause for other components either within the same circuit being powered or other components along the chain.</div><div><br></div><div>SMPSes also cause pollution of the mains, so everything audio connected nearby on the same outlet set suffers.</div><div><br></div><div>Josh</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Oct 31, 2019 at 9:14 PM Barry Klein <<a href="mailto:barryklein@cox.net">barryklein@cox.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">The thing is that switched mode designs are available in much higher frequency than what you likely tried. Might make a big difference, especially if followed by LDO’s for local circuits.<br>
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Barry<br>
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> On Oct 31, 2019, at 4:05 PM, Josh Nursing <<a href="mailto:josh.nursing@gmail.com" target="_blank">josh.nursing@gmail.com</a>> wrote:<br>
> <br>
> <br>
> After extensive tests in an audiophile chain, together with attempts at filtering, I've decided not to use switching PSUs in my audio chains, be it for audio playback or for music production.<br>
> <br>
> So no SMPS for synths either.<br>
> <br>
> The high frequency-induced 'noise' appear both in the circuit being powered and in other gear along the audio chain.<br>
> <br>
> You can spend time trying to filter things out, but it's much easier to improve on a Linear Regulated PSU, in my experience.<br>
> <br>
> Josh<br>
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