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Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ.

DO NOT mess around with any portion of the power supply!

Those power supply caps can hold a significant charge, possibly lethal! All you need to do is make contact with one positive terminal and any other metal part of the amplifier to possibly electrocute yourself or at least learn the lesson that electricity can hurt. The power supply bypass caps have nothing whatsoever to do with transformer hum and probably not much to do with the sound of the amp. Leave them be.

Despite your testimony to the contrary, I have a hard time understanding why anyone, trying to improve the sound, would bypass a quality capacitor (Mundorf SIO) with a lower quality cap. It just makes no sense at all, financially or technically. Maybe they don't really like the sound of the higher quality cap and want to mitigate its contribution. I would ask the tech.
berate is 8 and benign is 9


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