one more question , do You think that is necessary to use speaker protection board , I ve got distorted sound during few seconds after cutting power from amp and I am afraid about instabilities and frying my speakersi don*t know much,but i am willing to share
As an amp 'collapses what is in the capacitors is quickly dissipated by the voice coil.
like ostripper said already,,but I personally like it more with relay protection with relay-on delay and instant relay-off when amp is off. Elliot Sound Westhost Project 33 https://sound-au.com/project33.htm is my suggestion,read the site,inform yourself and if You like it i can provide pdf files for PCB.
