[sdiy] Opionions on Switchmode PSUs for analog synths?

Michael E Caloroso mec.forumreader at gmail.com
Sat Nov 2 02:41:23 CET 2019


It's worth pointing out that when the SMPS breaks you don't repair it
you replace it.

You can always repair a linear mode PS.

That's the convention with any repair shop.

MC

On 11/1/19, Josh Nursing <josh.nursing at gmail.com> wrote:
> What's up Barry?
>
> 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.
>
> SMPSes also cause pollution of the mains, so everything audio connected
> nearby on the same outlet set suffers.
>
> Josh
>
> On Thu, Oct 31, 2019 at 9:14 PM Barry Klein <barryklein at cox.net> wrote:
>
>> 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.
>>
>>
>> Barry
>>
>> > On Oct 31, 2019, at 4:05 PM, Josh Nursing <josh.nursing at gmail.com>
>> wrote:
>> >
>> > 
>> > 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.
>> >
>> > So no SMPS for synths either.
>> >
>> > The high frequency-induced 'noise' appear both in the circuit being
>> powered and in other gear along the audio chain.
>> >
>> > You can spend time trying to filter things out, but it's much easier to
>> improve on a Linear Regulated PSU, in my experience.
>> >
>> > Josh
>> > _______________________________________________
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>>
>>
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