square wave help

[Dan Howarth <howarth@U.Arizona.EDU>]

hi folks,

in my digitech studio quad is an lfo which runs, among others, a square
wave pattern. i understand that the square wave is -more or less- a
fuzz/overdrive/distortion type sound. 
i can assign the lfo to modulate any parameter in the effects section, but
i'm very unclear as to how to generate a fuzz tone.
the square wave can be set to run at anything between .06hz and 16hz...

any ideas? 

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**  Dan Howarth, History/Music, University of Arizona, Tucson **
**  http://www.u.arizona.edu/~howarth (under construction)    **
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