Hi AJ:

In addition to concuring with the other comments already given:

Ketron sounds appear (to me) to possess a MUFFLED (covered?) sound quality as well as having an overly emphasized bass. Though this creates an initially impressive dynamic 'in your face' impact, I personally find this to quickly become fatiguing to my ears. I prefer a clean & less 'bass hyped' (more natural?) sound quality that I feel the Tyros & PSR2100 offers. If Ketron could do this, I would definitely reconsider purchasing a Ketron board in the near future, as I was impressed with Ketron's willingness & success at implementing my request for jazz (rootless chord) recongition on the SD1.

Scott