Question for tube aficionados


I have a vintage Conrad-Johnson PV 11 preamp.
 I’ve always re-tubed it  with the cheapest tubes from Tube Depot (e.g. Electro-Harmonix 12AU7 and 12AX7, Sovtek 5751 and the like.). I’ve been very happy with the sound.
 My question is:
 Would it be worthwhile to spend more money on more exotic tubes?
  Would there be any appreciable difference in the sound?
 I’m powering the system with NuForce Reference 9 V3 monoblocks.
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Showing 1 response by jetter

Have tried a fair sample of the triple mica 5751 black plate tubes, as well as nos mullard 12ax7's.  Have not tried the gold lion 12ax7s, but can relate that the grant fidelity psvane 12ax7 are one fine tube.