I have only an initial take on the Mu-Tron, having only used it a bit last night, and unfortunately only through headphones. I have an original Mu-Tron III and was one of the people begging for this to get included in the Fractal universe. My guitar also has an OBEL, however I have not yet cabled the OBEL into my Fractal unit. I may one day put the envelope filter alone into an effects loop and use my OBEL.
Initially with the stock settings, I could not get much out of the effect, but after about an hour of fiddling I was able to approach the feel of my Mu-Tron. I believe I’ll be able to nail it with enough time and playing through my FRFR.
I had to make some pretty drastic changes. I’m not in front of the unit now, but from what I can remember, here’s where I left off (values are APPROXIMATE):
Peak: 3.5
Low freq: 100/min
High freq: 3200
Sensitivity: 8
Sweep shape: 3
Open/close speed (I don’t remember the parameter name): 15, 150
I also set the two pan knobs to the center.
As we all know, the Mu-Tron is highly sensitive to the signal and playing style, but this is getting me pretty close to how my ‘72 Mu-Tron III operates. The only mod that was made to my Mu-Tron was by Bob Bradshaw, to accept 18VDC external power, as the early models ran on battery only.
I can report that the feel of the envelope is much, much more like a vintage Mu-Tron III then I ever was able to get with a wah/envelope solution. I’m hoping this like turns to a love with just a little more effort on my part.
Here's my original:
View attachment 144552
