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  1. EifX

    Yamaha CR-640

    Hi There, I have got on of these on the bench and my knowledge is not advanced enough to handle the behaviour of the amp. When I first tested the amp with dummy-loads and signal generator en scoop. I just saw noise the pots and switches. After cleaning the pot and switches I tested it again and...
    • EifX
    • Thread
    • cr-640 learing yamaha
    • Replies: 2
    • Forum: Yamaha
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