The sound is clean and warm. No distortion when you push a little volume.
I had an AER Compact 60 and I bought a PA system for group play. The sound quality is at least equal to that of the aer, in much more powerful of course.
I use these speakers with the console Opera of the same brand. (See notice elsewhere).
I came across an opportunity in a stocking, which allows me to have materials of high quality for a "reasonable" price. I do not think I bought the sound system at a normal price.