I have used other preamps and DI boxes for my Electric Bass. The mic 200 gives a great improvement in the signal.I use the mic200 for live gigs for my Bass and also for records at my home setup. The bass gets a strong presence in the mix thanks to the preamp. Also when I connect my condenser mic to it for acoustic records, I get a much stronger signal than what I got earlier from the inbuilt preamp of my interface, which used to be pretty dull.It sure is worth its cost. a really compact powerhouse for a hot strong signal.