Amateur, Pro, or Semi-Pro, you'll sound better with a two speaker/stereo setup on a Yamaha arranger. I really don't know how anyone could argue that one output is better than two for a keyboard that was originally sampled in stereo, although I'm not sure anyone here is actually arguing that point. They are happy with the single output, for whatever reason, so be it.

So Tony, I'm with ya mate...you, Scott, Ian, Lee, and me, that's enough for a basketball team. We can call ourselves the Arranger DualOuts, and our games will be broadcast in Stereo!