I owned the FX25B Envelope Filter until my pedal messed and I'm planning on ordering a new one online. While I was looking to order it I came across some of the other DOD pedals and noticed the FX22 VibroThang Vibrato. I was wondering if this is just for guitar or if it would sound any good with the bass guitar. http://www.dod.com/fxpedals/allpedals.htm I also have the FX91 Bass Overdrive pedal and i love it. If there are any other DOD pedals that you suggest I would appreciate any suggestions before I place my order.