Here is hard to find instructions on changing tubes in the current and older STAX driver amps that use (6FQ7/6CG7) type tubes.
I use LOW NOISE NOS RCA CLEAR TOPS that can still be found with a web search.
They have given me the best sound quality.
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Topic - Biasing/tube changing... Stax Tube Driver Amps - GreatSound 11:47:59 06/27/21 (8)
- If you're willing to mod... - JimL 18:16:21 06/27/21 (7)
- The tube Stax driver amps more than enough output nt - GreatSound 22:08:26 06/27/21 (6)
- It depends to some extent... - JimL 14:33:41 06/29/21 (0)
- Sorry, don't agree on this one. - Grant99 07:31:55 06/28/21 (4)
- I prefer the L700 over the 007 and 404 by a lot . nt - GreatSound 16:47:24 06/28/21 (3)
- RE: I prefer the L700 over the 007 and 404 by a lot . nt - Grant99 10:01:33 06/29/21 (2)
- A Blue Hawaii driver would sound even better! - GreatSound 12:42:23 07/8/21 (0)
- I have the SR L700 MkII... - EdAInWestOC 12:54:26 06/29/21 (0)