Hi to all , I have a problem.on my pioneer sa 8800 where the dc balance on right channel when set to 0 mV result not stable and increase to 100mV..... now I hear in the same channel distortion music....and only after few minutes and after turn off and turn on the power amp again the music going well but is not clean how in left channel.... it is possible the two problem related to the same issue and must be re check and found which is the problem on not stable voltage ?