L3S is rubbish ? not wokring properly for ROCK band in StageScape Mixer / StageSource Speakers Posted April 3, 2018 I've contacted two authorized repair centers, and even THEY can't get this information. - The same as what the OP reported. The system can't be repaired. The drivers can't be re-coned. No one can even tell me if my units are working according to spec, so I can't re-sell them as they might be defective. It's absolutely unbelievable.