As I mentioned in my post on the vagaries of phantom power, I have been looking at designs for a compact self-contained box to connect an upright bass to the PA. The bass pick-up in question is a piezo jobbie integrated into the bridge like the Fishman BP-100. Needless to say Fishman recommends a suitable pre-amp if using a cable longer than 10 feet (3m). Since starting the project, I mentioned it to another friend who bought an inexpensive pickup for her violin similar to the one pictured below.
