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Ceramic Power Supply Coupling Caps - Replace??

146.148.99.38

Posted by Audiophile-in_Training on November 13, 2005 at 07:27:00

I am modding a Flying Mole DAD-M100proHT digital amp. I have already decided on replacing the input coupling caps with Black Gates of the same value, and upgrading the rectifier bridge to an IXYS Fred-type. I am contemplating the following for the switched-mode power supply:

Replacing the 2 ceramic "safety recognized" Murata output coupling caps (KH472M and KH222M)with film-type (they are 4700pF and 2200pF, 250V). They connect the PS to the amplifier section.

Bypassing the two big Nichicon electrolytic 390uF, 200V PS caps with film caps (the biggest I can fit may be ~1 uF,though - is that too small?)

Also thinking of replacing the ceramic shunt cap in the output low-pass filter with film cap or Black Gate.

Any watch-outs or recommendations?

This post is made possible by the generous support of people like you and our sponsors:

Kimber Kable

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