The Mu-Tron III is an envelope filter made by Musitronics Corporation. "The world's first envelope-controlled filter" was first made in 1972 by Mike Beigel and quickly became an essential effect for many funk musicians. It was taken in production ...
"We also went and got an old Mutron envelope filter. The one that gives you the Bootsy [Collins] sound. Awesome. The one we had would eat four nine-volt batteries in half an hour. It's awful. But it sounds amazing when the batteries are dying. We did a lot through that. in fact all the drums on "I Do Not Want This" was just one two-bar loop that Steve Perkins played. We just ran it through every effect we had in the studio--the Mutron, [Eventide] H3000 Harmonizers, a Digitech Whammy Pedal... Flood and I just went crazy.more
"Oh, and the Mu-Tron effects, which I just by chance, picked up this one and I also had an octave pedal as well of theirs. But this one has got that auto-wah sound, but it's..I'll show you that. It gets heavily featured on "Black Hole Sun", which is on the "Fingerprints" record. It's just got this really nice auto-wah kind of... It will open up depending on how you play a note. So it's really interesting." - Frampton about Mu-Tron III.more
“I had simple tools: a Telecaster, a Fender Twin, and maybe an MXR Phase 90,” Summers revealed to GP. “The next thing I got was a chorus, and that, along with the Echoplex, became very characteristic of the Police sound. I probably got up to four pedals taped to the floor before I could afford a custom Pete Cornish pedalboard with a MuTron, a couple of fuzz boxes, an envelope filter, chorus units, and phasers, all of which I’d combine with the Echoplex.”more
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