Hi have a five string Allegro. It's a cool instrument but one of the piezo's crapped out and as they are all in the wooden bridge, it rendered it useless. I disconnected the bridge from the preamp and there were no less than 15 very small wires to keep track of and then reattach. I ended up having a traditional bridge installed with a Full Circle which, IMO, made it sound more DB like. They play very well though and construction is good.