i have a jolida cd player which uses 12ax7 tubes, looking for warmer smooth top end and larege soundstage. some have said to use 5751s or 12au7. can i use these in my cd?
A 12au7 has 80% less gain then a 12ax7,a 5751 has 30% less gain than a 12ax7. I would not do that change! Just try some different 12ax7 tubes,I like older sylvania or Ge you can get them cheap.
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