I would check the diagrams of the same series as B215, B215D, etc., just change the hardware such as USB, wireless microphones and maybe limiter-compressor or cross over, I'm almost sure use the same output and source stages.
... unless they are of smaller diameter of horns for example of 12 "and 8" then they change the stages,
THESE ARE THE MAIN FILTERS THAT MAKE THIS BIT NOT HOLD. GREETINGS TO ALL AND I HOPE THEM SERVE THE TIP! AND AS THE COLLEAGEMENT OF THE QUESTION THAT HAS BEEN SUCCESSFUL BUT DO NOT HESITATE IT MAY ALSO BE FILTERED EVEN THOUGH THEY ARE NOT FATTY OR FELLOWED IT IS NOT NECESSARY THAT THEY ARE PHYSICALLY MALOBRATED TO FAIL.
I still do not finish, I think I will end up changing all the small filters, so far all I have measured give approximately half of the value, the esr are above 18ohm and the vlost walk above 28%, not counting 3 that were exploited underneath and with the glue did not see, I had never touched a team with so many bad filters, I never really thought the problem was out there, as soon as I changed everything I told you what happened, again thank you very much
As it is not going to be colleague you find your capacitors and bad resistors if you are reporting that the voltage to which it is subject undergoes very high variations lol