I use an ADA8000 as an expander to my LS9. Since it's 8 channels and I usually dedicate 8 channels to drums, it makes perfect sense (to me) that I put the drums all on the second layer, which puts them on the ADA8000. 99% of the time this has worked well for me for several years. I have one band I work whose drummer has a light touch. I set the toms where they are as loud as anything else, so that when he plays them, they stand out nicely. Problem is, on two songs, he wails on the floor tom. I never know when they are coming, and it clips like crazy. It never lasts long enough for me to isolate exactly what is clipping, and I wonder if it's the ADA8000 or the mixer. If the ADA8000 has a problem with headroom, all the limiting in the world wont fix the problem. I've talked to the drummer about it, but the leader of the band is adamant that he wail on the floor tom on the songs in question. I know there are a lot of ADA8000 users out there, and wondering if anyone else has had a similar problem. I also might use an inline pad on the floor tom channel if that is what is needed. Or I could switch just the floor tom for this band to one of the first layer channels, I know the LS9 preamps can handle the level.