Arranger players that don't really play might fall into that category, too, Kingfrog

And yet here we are...

Don't get mad, just ribbing you a bit, there I don't dismiss anything out of hand without hearing it first. But yes, I DO like to wait and see what gets past the first blush of enthusiasm before I take the opinion as face value...

Any self powered speaker, if designed decently, will sound pretty darn good up to a point. It is how high that point is that makes the difference. Ever take a piece of stage gear home, and then plug into it without turning it down from the night before? You shake your head and go 'I can't believe I needed it that loud!'... If you don't test gear flat out, you never really know whether it cuts it, live, or not...
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An arranger is just a tool. What matters is what you build with it..!