laltik-Have a Ref75SE and an LS-28. Both came with AR tubes. I rolled DR’s in each and after extended listening sessions I could not tell the difference.
After selling the tubes I upgraded the fuses in each to Synergistic Research blacks and the higher end Herbie's tube dampers. Those made a difference.
After selling the tubes I upgraded the fuses in each to Synergistic Research blacks and the higher end Herbie's tube dampers. Those made a difference.