Ive just received my 1st venture into Stax and electret/electrostatic Stax sr-80 pro and an SRD 4 adapter.
This combo is refered to an sr84 (1984) I hope I have collected that info correctly
My 'earspeakers' have a huge imbalance 85% left and 15% right. Im pretty sure its not the adapter at fault having tested both left and right outputs with the good left channel and vice verser. SO definatley the right earspeaker at fault.
I have learned so far that this is not an un-usual fault over time (30 years or so) as the micro measurments of these devices are suseptible to dust.
Like you I am not an expert at all but thought I might let you know what I have learned in the last week or so.
Inside my earcups it appears that componets have been removed from the wiring, and then cut and shut back together, either Ive been ripped off or this is a common modification, with a view to regaining the balance. Im not sure but I have viewed around 8 different photos online and they all have 2 components per ear hidden in the earcup. Diodes I think?
Im putting off doing a continuity test as I dont have access to exposed wires at the earspeaker end and would rather not start hacking away at the insulation until someone can offer a miracle cure..(I can hope)
I did a continuity check with the pins after reading an article and they are all open circuit as they should be.
Many thanks and good luck with research