
Hello, you should check your output transistors or integrated output because there is a crossing, check putting a voltmeter at the output which will mark the source voltage, it is normal that there should be no dc or ac voltage. , that's why your speakers are burning you.
Hello, it is too much if you are totally crossed with the source, that voltage is that of the source, check the mentioned components, output transistors, electrolytic.
Hi Sricagno, there is another detail that you should know, if the amplifier has a relay in the protection audio output you should check, because sometimes this when making contact creates a resistance due to the poor contacts and makes the output transistors overheat And burn them.