All the following has happened within the space of 3 weeks.
I purchased the L1 Model 1 with the B1 bass unit. I'm using backing tracks, single lead vocal and an acoustic guitar. I'm using Berhinger Xair 12 with iPad Pro. Master at 0 db, gain staging well within limits, essentially the desk end is setup the way it should be.
On first setup I though it sounded great and the quality was spot on, but on my first gig I had this limiting thing happening, very disconcerting, my vocal and guitar sounded massively compressed and in general the sound was awful.
Second gig, setup and just about to soundcheck and a red light appeared where the blue light normally is and there was a click coming through the column. I just happened to touch the column and the red light disappeared. I managed to get through the gig but again, the compression thing was happening.
During all this time, at no point was any clip happening, in fact not even an amber flash.
Because of the red light situation the base unit (controller, not the B1 module) was sent back to the shop and replaced.
3rd gig was a small room and the PA was fine and sounded great.
Last night (4th gig) normal size room (about 100 people) and the compression situation is back.
My trim was set at 1-2 o'clock and if I turn it down it seems to ease the compression problem, not totally but a little.
In the days gone by of amps driving passive speakers, we'd always drive amps up full and 0db on the desk, gains down etc etc blah blah... So... my major question is, would it be better to try and get the desk down even more - from a gain staging perspective and drive the trim up full?
I'm kinda at the pulling my hair out stage. I was expecting great things of this PA but I fear as far as operating at a decent volume, it just isn't up to the task when it comes to a 'normal' size room, but I hope I can be proved wrong.
I do hope someone can shine some light on this.