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    EAR Yoshino 912

    Jupiter's caps work fine. I didn't change them myself, I have a good service man. I'm really happy with the copper caps which are more to my taste than the silver caps. Warm sound, all the hardness disappeared. More music than hi-fi.
  2. G

    EAR Yoshino 912

    Thank you all for your good advice and ideas ! I think I will order copper capacitors.
  3. G

    EAR Yoshino 912

    My guess is that the problem are caps. I first used the original EAR caps, but I wanted a better one. The tubes are original, not fakes. I understand that caps can have a long break in period, up to hundreds of hours.
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    EAR Yoshino 912

    Hello, Can you advise me ? I have an EAR 912 pre amp. I upgraded it with Tunsgram PCC88 nos tubes in the line stage and Mullard PCC 88 nos tubes in the phono stage. I also replaced the signal capacitors with Duelund 0,047uF JDM 600V Pure Silver. Now the treble is hard and stinging. I have put...

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