Hey everybody, recently I had posted about a problem I was having with my Peavey Combo 115. The sound would momentarily fluctuate on it's own. Bumped up the gain to 5, and lowered the master volume. While I get a good tone , the problem occured Friday night. This time however, I discovered that this only happened when the compressor/limiter was turned on. Turn it off, no problem whatsoever.( This is not the DDT by the way.) My question; this compressor has it's own level, and adjustment for the ratio. I have never owned an amp with that kind of set up before. Could it be the way I set it? What exactly does the ratio mean anyway? I know it's probably a dumb question, but other amps I've owned either had no compressor, or a push one button and it's on set up. Again, my friend thinks it's probably due to way way I set it, and not a defect. Any help you can give would be greatly appreciated. Incidentally, I think it sounds just fine with it shut off anyway. Peace, and thanks again everybody.