This mixer is great and built like a tank. I am using it to blend my keyboards and sound modules and effects also. As my keyboard rig is growing I am thinking to buy one more of this. Thank you Thomann, thank you Radial.
After some time of using it, I have noticed some noise on channel 3 an 4 and a few volume knob are making noise when turning them. I wrote to Radial support and they confirmed these background noises...though, in live situation cannot be heard. Everything else is working very nice.