Joe Pavone did a "shootout" of a bunch of phasers last year, and Mark Pulver posted the results at http://www.midiwall.com/synths/phasers.html. If I remember correctly, the original Moog 12-stage took the prize. I myself have the Moogerfooger and quite like it--like all of the MF pedals, it sounds great, is extremely patchable and interfaces very well with MOTM gear. I was using the LFO out for my MOTM system until the '320 arrived.
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Phasers
2000-04-26 by Ben Vehorn