Definitely change the stock EL34's for something like SED or Svetlana. The stock were a bit too forward and midrangey for my taste. I noticed a larger improvement with these tubes than with the others. However I did not choose to spend the big bucks on 845's.
Tubes for Antique Sound Lab 1009
ASL 1009 owners, I'm looking for some ideas on new tubes (over stock chinese tubes) for my ASL 1009. Thanks.