So I found what I believe to be a V4 op-amp Big Muff. The circuit board says 1322, the switch is labeled “AC Off ON”, and the chips are a 741 and a RC4558, from what I can make out.
I’ve been using a Little Big Muff for about a year. And I recently bought the Tone Wicker version. So the first thing I wanted to do was hear the difference between the Vintage and newer versions.
I like the Little Big Muff just little better then the Tone Wicker Version. Although bypassing the tone stack on the Tone Wicker is a nice wall of sound. But the V4 destroyed both of ‘em. I set both the LBM and V4 to the ‘Billy Corgan’ setting (SP’s my fav band), and the V4 nailed it. But on the LBM I had to crank the tone all the way and the volume to 3 o’clock to even get close to the BC settings on the V4 (volume just over noon, tone slightly higher, sustain all the way). I’m playing through a Mesa Boogie Rocket 4Forty, 4x10/12ax7’s. I gotta say I don’t really want a JCM800 like I used to any more;)
My original thought was to start gathering pedals for a ‘vintage’ pedal board. With the V4 Big Muff, a Deluxe Memory Man, MicroSynth, Bad Stone, Crying Tone, etc… But after what I just heard, I don’t think I can keep the V4 off my current live board. In fact, I’ll probably start looking for vintage replacements for some of my current pedals.
Thanks to Kit Rae and his excellent Big Muff History for helping me identify the Muff.