Tube amp bias adjustment advice

mmporsche OP
Not sure why my link to pictures disappeared. Here it is again:

I assumed you had 211 monoblocks in my first post, now I see it’s a stereo, but same deal.
Don’t play with the bias yet, just swap left for right speaker leads and interconnects on the amp (this way the recording is still the same orientation) and see if the balance still favors the left.

Cheers George

Have you try swap the tube from left to right?

Don’t do this as then you will have to re-bias both of the the amps.
Just swap the amp whole from left to right first, and say which side is louder.
(it could be the source or the speakers) that has to be ascertained first before doing any re-biasing, and a 211 biasing is not a very safe area to be fiddling with if your not confident, with the HT around that area.)
  
Cheers George

mmporsche OP

Don’t touch the bias yet, before answering some questions.

1: Was it in balanced before?

2: If you swap the amps "only", does then the right speaker sound louder or is the left still louder?

Cheers George