Hi, looking for some advice. I run a passive Jazz bass direct into a Genz Benz STM900 and in the main I'm relatively happy with the sound although occasionally i do think that the mids could do with "opening up" a little. Added to this i have no back up amp so i thought that i might get a preamp pedal with a built in DI so if the worst happened at least i'd still be able to send a signal to the desk. I've been looking at the MXR M81 and of course the Sansamp and wondered if anyone else had any recommendations?