1979 '79 MXR Envelope Filter Block Logo Script Backplate
Here is one of the holy grails of vintage envelope filters, also known as auto wah effects. This 1979 '79 MXR Envelope Filters is as good as advertised, with warm, round-sounding, vowel-shaped, analog-colored sweeps for funk, rock and, of course, those Jerry Garcia and Grateful Dead tones. Here's the thing: I already have a vintage Mu-Tron III and a reissue Mu-Tron Micro-Tron III. So, as much as I love this MXR, my envelope filter cup runneth over. Therefore, someone else should get to enjoy this amazing analog pedal from a bygone era.