Thanks for sharing opinions to fix my amp.
I did one more experiment. I switched the speaker leads to 4 ohm terminal connection on my amp.( previous early onst of vibration is with 8 ohm connection) now The vibration did not occur until about 2 h later and was just initially 4 vibrations, followed by consecutive vibrations at 2h 40 minutes.
Does this mean circuit board of 8 ohm is not as good as 4 ohm? Any opinion from amp experts?
thanks
I did one more experiment. I switched the speaker leads to 4 ohm terminal connection on my amp.( previous early onst of vibration is with 8 ohm connection) now The vibration did not occur until about 2 h later and was just initially 4 vibrations, followed by consecutive vibrations at 2h 40 minutes.
Does this mean circuit board of 8 ohm is not as good as 4 ohm? Any opinion from amp experts?
thanks