Old-Dutch In all seriousness, this is probably the right answer unless the speakers have been moved or new furniture added/taken away from the room.
It’s taken me until recently to understand how to balance volume vs. boosting towards the reds even if red is invisible. If too much energy/noise is going down a cable it basically squashes the sound into something that doesn’t sound as good - just very loud.
Like blowing down a straw there is a limit as to how much can be sent down it at any one time - so if you make the DJ equipment operate around 0db and then turn the volume up at the back of the speakers after that, you might find it sounds better. You could also try again from -6, and if still not sure try +6 with the volume lower on the speakers and see which of these are the right balance.
