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  • Bringing new life to an old classic marantz stereo receiver with a class D amp board.

    Great article, cleaned up a old monster receiver Hitachi SR-2004. Cleaned the pots and switches, and plays nice but under further evaluation left side seems lacking in bass compared to right. Switched L/R source inputs, switched L/R speakers, still follows left side output of amp. Could this be a dry cap on the pre-amp section? Any thoughts or hints appreciated.

    Great, thanks for the quick response. I'll open the beast up again and see what I can trace down.

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