I have just come across the T-REX Moller pedal, it's for guitar, it has a mix knob...so you can mix the distortion with your bass signal, i think it sounds ace!
I have an orange ad200b, i wanted the amp's distortion for my sound, but it's only a single channel amp, and i can't afford 2...
But this pedal sounds bang on like the orange gain turned up, i havn't used it with another amp, so i dunno if it will sound like the gain turned up on thaat, but i guess it will! and because of the mix knob, you don't lose ANY of your tone, you can have more distortion than your bass or more bass than distortion, and it sound like a cranked valve bass amp,
T-Rex do a bass one aswell, it's a little different, but that guitar pedal is bang on! and it has a seccond boost switch on it, go have a look...
http://www.t-rex-engineering.com/Def...D35&VariantID=
Our bands new guitarist have a thing with them, so can get em on the cheap, can't wait till i get my own!