Fuzz pedals made for guitar don't usually sound good on bass. Bass needs a fatter signal. I've tried some of the best Vintage guitar Fuzz boxes on bass & I found that once I try to play with a full band, they did not cut through. When I sat in with The Ghastly Ones on their Pacific NW tour last year I used an Ibanez Phat-Hed Bass overdrive. It was exactly what they were looking for. I also used this pedal when I recorded the bass VI fuzz solo on the Beat Killers song Gimme A Kiss. It roars. Fender has just put out a pretty cool looking bass fuzz that I plan to check out soon as well. Over-driving an amp with a bass might give you a cool sound for a while, but you can really damage an amp, especially a guitar amp by pushing a bass signal through it. Back in the 60's, before bass amps were designed with hi wattage, basically that's what you had, over-driven distorted amps. It's not as easy to control as a pedal. I have a 67 Gibson EB2. That fat humbucker has blown out a few speakers in its day.

