Not sure I’m in America. There is a service center in Boston. About $500 per amp to repair in the states. Interesting that the later versions, 80 series are considered unrepairable in the states according to a friend with 1031’s recent repaired amps. Drivers are another story and sounds like you may need some if they are still available.
There are threads that discuss a simple repair where the speakers quit working because of the ribbon cable getting unconnected from the input xlr to the amp pc board. I would check that first. Search threads here.
