In Reply to: RE: Good news posted by 6bq5 on November 16, 2016 at 17:33:05:
I haven't, but I am a fan of 6BQ5's, so much emotion. What I do swap in are updated Heathkit UA2's. The ESL63's are biamped with subs, so the 6BQ5's do drive them, but I still notice a difference with higher power amplifiers.
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Follow Ups
- RE: Good news - fredtr 18:57:53 11/16/16 (0)