In January, I sent in my P-10SE to BAT to have the auto-balance circuit installed. My unit came out before the auto-bias circuit was included. I was tired of having to adjust the bias (using those 2 pins/side and a meter) each time I changed the 6922 tubes. As of 1/10, BAT is now installing a new AC balance circuit (the older version controlled DC balance). BAT feels that this new circuit is quieter and does a better job than the older DC one. I can change any of the tubes now without having to rebias. A big relief. Highly recommended.
Consider the new Genelex 6922 tubes in this unit.
Consider the new Genelex 6922 tubes in this unit.