I recently fixed a σ22 I used to have in my EHHA (Bad Q1). I rigged it for 12V for another project, but it Looks like it somehow got toasted again on the bench (I had no negative output at all). I replaced the mosfets on the negative rail, and now I am getting the full rectified voltage (~21V)...

Just a teaser for now, more after my head get screwed on straight. Headphone Addict graciously hosted a small meet - originally envisioned as an electrostatic/orthodynamic comparo and DAC reevaluation. As is typical in these parts - a LOT of kit materialized. Our host, Blutarsky, Naamanf...