I stumbled on this forum when I suddenly remembered and Goog'd the f'ing name of this crappy, tweegy-looking EH pedal I bought and used in the early 70's with my P-bass when I was looking for something to try to emulate Squire's Rick when my band did Yes copies. For the life of me, I could not remember the name - I kept thinking it was called an Octave Equalizer and kept hitiing dead ends looking for it. I was looking through some old boxes in the basement, and I found a couple of the other EH plugin-type boxesI had forgotten about - a Screaming bird with no bottom cover and a Muff with more than a little corrosion on it and a broken solder connection, and I immediately remembered the name of the AE.
Anyway, this pedal fit the bill (to the extreme), to the point where I had people yelling at me to "tone down that horrible clicking noise". What it did, the way I used it (remember, this was the early seventies), was it exaggerated the bottom and top ends, and was able to do so in a way that it appeared to knock out almost all the mids. I remember also being able to set it so that it knocked out just about everything but the clicking of fret and pick noise on the RotoSounds I had on the Precision. The thing I really liked about it was that it was able to give the bass a really pillowy, muffled bottom, and of course a rather nasty treble edge at the same time, or go to one or the other extreme. It did give me a little grief on certain parts of the neck though, so it required, unfortunately, a somewhat narrow tonal "range" I had to settle for in order to keep from dropping out on certain notes. Probably nothing that any number of decent pedals couldn't do today, but back then it was a big deal to me, and quite frankly, if I ever dig it up, I'd probably use it ina heartbeat. It was what it was, but I don't think many musicians back then were able to find much good use for it.