05-03-2018, 01:08 PM
Leave the 630V rated caps in there, they will be fine unless you plan to run your 39-40 at full volume eight hours a day, every day. And I am sure you won't be doing that. 
The 1000V rated caps were specified to handle peak "spikes" in the audio. Most of us never crank the volume past 1/3 of the way or so up.
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The 1000V rated caps were specified to handle peak "spikes" in the audio. Most of us never crank the volume past 1/3 of the way or so up.
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Ron Ramirez
Ferdinand IN