I was delighted, as always with Thomann, and overall the Yamaha PA is ok, but only ok.
The master "eq" is a tiny knob, and radically changes the line eqs. I wanted to push electric guitars, acoustics, voice, backing tracks, keyboards etc thru it, but its virtually impossible to set the master eq to properly reflect the mix of instruments. It can be set for one - no problem, but not a mix of instruments - no way.
But I wouldn't send it back;)
Kieran.