[sdiy] Opionions on Switchmode PSUs for analog synths?

[Adam Inglis]

> On 2 Nov 2019, at 11:41 AM, Michael E Caloroso <mec.forumreader at gmail.com> wrote:
> 
> 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

Exactly!
Not doing the planet much good is it?!!

A





> 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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>> 
> 
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