I have problems with my EMG 77 retroactive i don´t know if the problem is with the pramps (low gain , low signal output about 70% of EMG81 ) but it is easy to convert them to passive.
Now I am more satisfied when they are passive than when they were active ;-)
Look here
https://www.youtube.com/watch?v=8rRyYKK1WrA&t=8s
Now I am more satisfied when they are passive than when they were active ;-)
Look here
https://www.youtube.com/watch?v=8rRyYKK1WrA&t=8s