Thank you for the information. I do intend to have the work done by a tech. Since the speaker cabinet and the preamp are basically like a guitar amp, shouldn't the tech be able to repair it and test it without the harp assembly? In addition to the fact that I play the piano every day (through a separate amp), I am reluctant to subject the harp assembly to transportation because I don't want to break any of those tiny wires. Thanks again.