Primaluna 300 integrated running 6L6 with high bias switch


I have a Primaluna EVO 300 integrated.  I prefer the sound of 6L6 with the high bias setting.  The low end is more firm and lively.  
 

Primaluna says plate voltages run at 417v, I’m assuming that’s the low bias setting.   Anyone know how much the high bias switch increases the plate voltage?  Supposed to use the high bias setting for 6550, KT88, KT120.

I

randybrinkman

Showing 1 response by tuberist

Randy you might like KT150, they provide the bass plus great transparency and spatial qualities, tone is super. In my PL I found 120s too sterile and KT77 pretty good but not enough mid bass. I occasionally swap the 150s with 7581a, which have surprisingly good bass.