• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

Copland CVA-306 tube and output capacitor replacement

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stanzani

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Joined 2014
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Hi all
this is my entry post so hello everybody!

Then my question: I own a 5.1 tube preamplifier from Copland (CVA-306) and it is time for tube replacement. I plan to use higher grade tube for the front and center channel, using cheaper parts for surrond and LFE. Are there any pitfall on doing this?
I'd like to change the output capacitor on the signal path with higher grade as well but I cannot decide which one I should replace: can somebody address my to the unit schematics and BOM?

thanks much to everybody who'll help
 
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