Hi, I have a problem with a home amplifier that gave me good sound until one day I did not sleep anymore and when I connected a speaker, sparks came out of the audio output of my amplifier I opened it to check it and noticed that an electrolytic capacitor exploded, I changed the new one but they were still sparking when I connected the speaker, I have two of these circuits but only one is with this fault I do not know that it can be nose if you can help me. This scheme I passed and is almost the same.

Hi, this amplifier is based on an RCA circuit and many brands like Audison, Aries, Kithec, etc., just check the output transistors 2N3055 and generally TIP 31C and TIP32C is sure that there are some in short, you must change the pair , to work evenly, get good quality because there are many fakes, check reheated or devalued resistances, greetings