Can I tweak L-R balance by differntial biasing?


My new (to me) Almarro integrated does not have a balance control but my room is slightly asymmetrical. I'm playing a little w speaker toe-in to try to correct this, but I just had another idea. Bias spec is 0.20 volts, with 0.18 volts suggested as a minimum which will reduce output slightly but provide more tube life. It seems to me that if I bias the output tube slightly lower on the "louder" side, it might shift the balance slightly toward the side that is biased higher. Does that make any sense???
swampwalker

Showing 1 response by jjrenman

I agree with the Almarg....

Depending on how "desperate" you are I see four possibilities.

1) Try Rrog's ideal of changing your room. (Probably the hardest to do if a relationship is involved).

2) Add a preamp with balance control. (Probably the hardest on the finances).

3) Add a voltage divider network just before the volume control on the channel that you wish to lower. (Probably the most time consuming).

4) Have your integrated modified to have either left and right volume controls or adding a balance pot. (Definitely the most trouble to restore to original operation).