For a couple of months we have been having problems with our m20d soundscape mixing board and Lt3 speakers. Right in the middle of service the speakers cut out intermittingly. We are using the L6 Link with a aes 50 ft. cable to connect to the first speaker. When it happened the 1st time we could not figure out what was causing the problem. The 2nd time it happened it seemed to be one of the speakers (we figured it out by swapping the speakers and the problem persisted with the one speaker and not the other) so we took it back to the vendor. they could not reproduce the problem. We brought back the speaker and it happened again . They gave us a rental for the time being and everything seemed to be okay. Then the other speaker(not the rental speaker) started to drop the link to the mixer. any ideas as to the cause of this?????