Expectations after re cap of power-amp


My 1982 Yamaha M-2 power amp is in the shop and this time I agreed to replace all the suspect capacitors. Two of the capacitors are the size of coffee cans and the total bill may exceed $500. I am told that since all the replacement parts will be as good as or better than the original parts it should sound as good as new or better.

I’ve never done this before.  Should I expect “as good as new” or am I completely wasting my money?


timothywright

Showing 1 response by 4krowme

  Fact is, that if the capacitors are not replaced, there is a (small) chance of big trouble. I am not trying to incite worry here, it is just a fact that capacitors do age. Normally, it is just the overall performance that suffers, but just like other components can, and might, fail in a way that is a game changer. Specifically if a component fails and then shorts out, all bets are off as to how much damage is accomplished. If on the other hand, the component goes open (no circuit connection), chances are better that no further harm will be done. 
 I often compare the care of audio equipment to a classic car. If you don't replace spark plugs when you should, it is not a good overall result for the engine. There comes a time when much more should be done to preserve that performance and value of the car itself.