I don't know if this is a forbidden topic in Rockdom but it's bothering me enough to see if others have experienced it. I play quietly. When I practice by myself you could carry on a conversation at a normal speaking volume. When I first started to play with this amp I thought my ears were simply annoyed due to not having been exposed to a tube amp after having used a digital modeler for many years. But my ears started to ring soon therafter. When I play with the band at higher volumes (they always ask me to turn it up) I use ear plugs. Recently I stopped playing for about 5 weeks and the ringing went away. Now after only 4 quiet practice sessions my ears have started to ring again. I have dialed down the presence and boosted the bass but the problem continues. Why would my ears be ringing after playing at such low volumes? Are there extreme harsh frequencies coming out of this amp that could do this?