Maybe it was the new Lakland electronics but I just could not get a pleasing amplified sound out of the 55-02. If it was the old Barts, it may have been a different story. I like the way he JO5 sounds acoustically and amplified. It also suits my playing style better. I couldn't find a good comfort zone on the 55-02. I like the JO5 passive. I'm also eyeballing a DJ5. I'm tired of buying batteries. If I want a pre I may just get an outboard pre.