tube pre-amplifier

  1. Y

    ARC ref10 tube rolling?

    I just purchased a Ref 10 which shows 2535 on the tube hours. The preamp is on the way to arrive next week. I want to know what are the recommendations for some tube rollings for the ref 10? It uses eight 6H30P in the main units, two 6550C and two 6H30P in the power supply. Thanks!
  2. treitz3

    Esoteric Audio Research 868L or 868LP tube preamplifier

    Does anyone here have experience with either of these tubed preamplifiers? If so, would you be so kind as to let me know what your thoughts are with them? Thanks in advance and Merry Christmas/Happy Holidays to all! Tom

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