exactly, that is the Mutron Octave Divider.
that sounds like just the Mu OctDiv with the ringer ON with the mix just slightly on the guitar side vs the effect side as you can still hear a good chunk of the base guitar tone. towards the end of the jam you can hear him roll the guitars tone control all the way to the extreme bass side also.
this setting sounds great with the boss ds1 or series 2000 mxr dist+ in front of it as well.
"Tone is in the instruments. Technique in the hands. Do what you will." ~quote from some guy at the TGP forum
"Without a doubt, the quality of your instrument will effect your tone, and any pickups, effects, amps, and microphones used along the way will also have an impact on the sound waves."~Cameron Mizell