3 Band EQ GMD Version

Single channel 500 series PCB based on the classic Studer 169 EQ
Optional input transformer and DOA footprint
High & low shelf, and sweepable bell filter.

Based on the PCB from https://pcbgrinder.com/index.php?route=product/product&path=59_60&product_id=55

This is my version with Neutrik transformer, custom faceplate and frequency mods.

Blog posts (german):
https://goetzmd.de/category/diy/studer-169-eq

Audio examples (no talking) starting @ 1:03:
https://youtu.be/JwoyKLKCRMk?t=1m3s

Short video (german) starting @ 3:37:
https://youtu.be/zY-t1-cldA0?t=3m37s

https://pcbgrinder.com/index.php?route=product/product&path=59_60&product_id=55