The SA Organs are beefier than the preset organs, and the ones made with the drawbars.

The SA Jazz Rotary, for example, has the distinctive Hammond chorus vibrato nailed, as well as having a richer tone (and 2nd harmonic perc)....mod wheel changes Leslie speeds.

SA Rock Rotary is warm, rich, and overdriven, sounds like 888754200 setting...just the perfect amount of grit...mod wheel changes speeds.

The preset and drawbar organs on the S-series are beautifully clean and have a decent rotary speaker effect (and you can add harmonic perc to the drawbar organs), but the SA Organs are less polite and prissy...they are my "go to" organ sounds on the T2 and T3.

Previous Yamaha organ sounds were more reminiscent of the Electone organs (probably not an accident ), although some managed to get close to a B-3.

You already have great organ sounds (and a fine rotary sim) in the G-70, so these may not matter to you, but having these Tyros2/3 sounds on the less expensive and more portable S-910 is a real treat.

I rarely adjust drawbars when playing, so the fact that the SA Organs are preset doesn't matter to me...but, they are sure inspirational.

Ian



[This message has been edited by ianmcnll (edited 09-16-2009).]