Can anybody explain what this control actually does? (I assume its the same on all their amps)
I have the DB800 head and when this knob is fully clockwise (labeled loose) my amp is almost entirely noise free. When i dial it back towards 'tight' there is increasing noise. When fully dialed to tight there is a crap load of noise and i'm wondering if this is normal. Maybe if someone could explain what this knob is actually doing it would make sense to me. I know i should go with trusting my ear but i cant hear much difference other than this noise it seems to inject.
btw this is happening even at bedroom level.
Edit: I should add that this happens even with the mute switch engaged. So its nothing to do with anything going into the amp.