L3S is rubbish ? not wokring properly for ROCK band in StageScape Mixer / StageSource Speakers Posted June 20, 2017 Where are you based? I have an L3 sub that if you are anywhere close to the West Midlands you could borrow to try. I'll be quite honest I bought it and have never used it as I have been mixing acoustic acts and my L3 tops have been more than up to that task. To be fair I haven't seen any complaints about the subs being under powered.powered.