Yes, here is the youtube video: http://www.youtube.com/watch?v=RWj5CUl7rio

The only way I would be able to tell for sure if I have "higher than spec" distortion is to measure it with equipment like that.

Axiom M80s + QS8s + VP180 <-- Pioneer VSX-1120-K <-- Squeezebox Touch / XBox360 / Oppo BDP-93