I wonder, is this amp just a power amp? I have read somewhere that it also has a limited pre amp section. So you can say that it is an integrated amplifier after all that can be used stand alone with no pedals or pre amps in front of it? This amplifier seems vere usefull to use in combination with my effects. One thing is important to me though and that is a treble control. When you play at different volumes the sound can get too dull when playing at a low volume and to sharp and trebly when playing at higher volumes. Then it is nice to have a treble control that works well. I understand that the treble control is more a presence control than a treble control. Has anyone experience with this amp?