re capping


I hear the phrase 'recapping'. when do you know when you should 're cap' an amplifier? I have a McIntosh mc602 amp that sounds fine to me. I also have a McIntosh mx132 that works ok for me. I also have a bose 901 series 2 active equalizer that seems to work ok. the 'red' on light kinda flashes now and then. if my system sounds ok, should I worry about my units?
g_nakamoto

Showing 3 responses by partroysound

When you recap a 30 year old amplifier do you change the big power supply caps or do you replace all of the circuit board caps?
You are right, there are also 4 1700uf caps. After I replace those 8 caps should I stop there? There is no other sign problems and the amp works well. I am not trying to be cheap there's just a lot caps left.
Everything looks good and the amp sounds good but it's a 1987 and I don't know the history on it. I have a Chinese ESR meter and a regular capacitance meter and so far every cap I test has shown good. The amp has 4 36000uf 100volt caps that are too large to test on the meters I have. Is there any way that they can be tested easily?