Rick,
I tried it again...I selected Live Grand, turned off all effects and set the EQ to Flat.
When I raised the total Gain I got distortion.
Seems to a normal thing as my S900 has had no problems since I got it.
Hope this helps.
Ian
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Yamaha Tyros4, Yamaha MS-60S Powered Monitors(2), Yamaha CS-01, Yamaha TQ-5, Yamaha PSR-S775.