2. amps-preamps
  3. 155204-39309

PS Audio BHK preamp owners

Hi

This question is aimed at PS Audio BHK preamp owners regarding the tube bias. I understand that the bias is user adjustable by just moving an internal jumper pin (pretty brilliant). The unit ships with 12au7 tubes set at 4 milliamperes. When the jumper pin is moved the bias is increased to 5 milliamperes. I would like to know if anyone has tried this and if so did you like it? Thank you.

Scot
scothurwitz

Showing 3 responses by tomcy6

tomcy6's avatar
tomcy6
2,623 posts
 
I also believe the change in bias is so that one can use either 12AU7s or the 6DJ8 family of tubes.  I've switched between those two but never tried different settings for the same tube type.

PS Audio has its own forums and you may find more discussion of this there.
tomcy6's avatar
tomcy6
2,623 posts
 
I think you should just call PS Audio.  They are happy to answer questions and they've probably gotten this one before.  
tomcy6's avatar
tomcy6
2,623 posts
 
Scot,  I think their forums are active, but not very active.  Since their amps and preamps have been around a while now there's not a lot of people asking and commenting on them.

I know when they switched over to their new forum format they deleted posts in the old format and deleted a bunch of posts with a lot of information.  I don't know why they did that.
More to discover