So, today while I was playing, I noticed that my peak indicator wasn't coming on at all. Normally, this is something that would be good news for me, as I prefer a very clean tone rather than an overdriven tone. However, I hadn't changed any of the EQ settings on my bass or the amplifier. I began to experiment with the gain knob, trying to see the point at which it would once again cause the peak indicator to light up. It ended up not coming on until the gain was MUCH higher than the level that had set it off in the past. So in the end, I don't know why my amplifier is suddenly saying I can add a lot more gain than I previously was able to, despite me not having tweaked the EQ at all. Any ideas as to what might have caused this?