master volume issue?

[matz]

Hi,

when I connect my Minibrute Master Out to my mixer (a Behringer Xenyx 1002) I have some problems, or at least I do not understand what is happening.

I turn the Master Volume knob from zero till the third tick, the volume does increase, but after the third tick the volume decreases and eventually mutes; I keep turning, silence, then more or less at the 11th tick last the sound comes back and it increases as I turn the knob. So, for instance, at the 8th tick the output is silence.
This happens regardless of the knobs on the mixer.

Why is it that?

Thanks

[new]

It may be an impedance problem, I had similar erratic behaviour from running my MB through a Mackie VLZ. Check the channel you're using on the xenyx is set to line level ie. no pre-gain (i think it's a button marked "-10 +4" something like that), otherwise the output from the MB might be overloading the mixer, which can cause the volume dropouts you described.