Hi Ean, He says in a couple of interviews (and his book as well, I beleive) that it was the Eventide H910. A lot of articles and this interview say that he ran it straight into the board:
GC: Are you still using your basic distortion box/chorus setup?
BM: Yeah, although I did use a harmonizer on this record (Metal Circus), which is basically a chorus hooked up to the board. It’s warmer and sounds cleaner than a foot pedal.
