Got my Lyr in the mail yesterday and pairing it with my LCD2r2s. Sounds quite wonderful, but then I discovered this thread and, well...
Any suggestions for tubes sub $100 for a PAIR that'll get me more bass? ;) Thinking about orange globes or something similar; possibly even stretch a little and get the 6922s that mercedesman has on ebay.
Used Orange Globes or Bugle Boy's are nice. Used, mid 1960's about $70
These 1971's, Used, $60 might be a nice place to start.
Don't get too hung up on NOS / NIB, used tubes can sound very nice when purchased by a reputable vendor that backs his products. Like mercedesman, he's understanding and easy to deal with.
You can cook the tubes during the warranty period to make sure they are solid.