SRM252mod
Jul 28, 2022 at 11:36 AM Post #31 of 33
Here are two more measurements of the quiet noise at the amp output with another linear 12v power supply.
(unmodified (500xgain) SRM252 unit, input poti at minimum, driving SR003). Worse peaks even between 3 and 4.5 kHz.
Shows a relative big influence of the wallwart psu at the amp outputs.



OK I found this from a search:

https://orronoco.blogspot.com/2019/10/simple-component-upgrade-stax-srm-252s_3.html?m=1

You might need to translate it via browser but these are interesting mods and the guy appears to know the circuit well and provides schematics.

GDNW
 
Jul 28, 2022 at 9:07 PM Post #32 of 33
My SRM-252 has gone through so many changes it a different AMP now.
Now has bluetooth DAC builtin, really handy.
 

Users who are viewing this thread

Back
Top