I hope someone here can answer this for me. I just received one of these lovely Framus 5/150 Starbass re-issue models that were made in Korea and I have a question about the control layout. The lowest knob, closest to the output jack, seems to have very little effect on the tone. Framus just lists the controls as Volume/Treble/Bass, which would make me think that the knob in questions would be the bass control. But, it seems to be the treble control......if it is doing anything at all. Anybody here have experience with one of these lovely instruments?