Fun Generation Stagemix 400

This PA system had all that I needed, light, good 10''speakers and enough mixer functions for my own needs.

However on my first and subsequent testing I kept getting distortion on all channels even when the Limit green indicator was at 2!! I tried other keyboards but the distortion persisted.

The speakers did their job well. Clear and good bass sound

So this was very disappointing because I really liked the new mixer but it was either defective (despite passing quality control) or the system did not produce the power advertised. I would really like to know.