JBL Project EVEREST DD66000 User Manual page 30

CHAPTER 11
Troubleshooting and Service Guide
Project EVEREST DD66000 loudspeakers are designed to provide years of
trouble-free service. No maintenance is required.
If a problem occurs, make sure that all connections are properly made and clean.
If a problem exists in one loudspeaker, reverse the speaker wires to the left and
right system. If the problem remains in the same speaker, then the fault is in the
loudspeaker. In this event, consult the Project EVEREST DD66000 specialist
dealer for assistance. If the problem appears in the opposite speaker, the cause
is in another component or cable.