[sdiy] Yamaha P50-m inner reverb effect low level issue..

Jean-Pierre Desrochers jpdesroc at oricom.ca
Sun May 28 18:04:12 CEST 2023

I just bought a nice Yamaha P50-m MIDI Piano sounds module for cheap.


I know this is a 90's module so beware of any electrolytic caps in it..
But anyway,


I do experience a weak effect's level  when using the P50-m 'REVERB SEND'

If I want some reverb applied to the active voice I have to crank the REVERB
SEND setting to max (127) 

to hear some reveb effect.. 

I read the P50-m uses cheap BBD IC's for the inside reverb.. 

I checked all the inner electrolytic's ESR values and they all have correct
values so.

So does anybody who have/had one of these module had this problem ? 

Thanks for replying.


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