I recently swapped from the default MKIV SE tubes to EF91 tubes. However, it looks like during the tube changing process, I had the LD plugged in (of course it was off!). Right after I did this, I noticed distortion from both the channels. Then, I unplugged the unit and changed the jumper to the EF91 setting and doing so resulted in very low volume in the right channel and the right amount of volume in the left channel. Swapping the tubes did not fix this either. Should I leave it unplugged overnight to resolve? Thank you!
FYI, Headphone is a Beyerdynamic T1.