Graham beat me to the punch. There is a wealth of solid information on this subject on the PSR-Tutorial site and those that have utilized the settings are very happy with the results. Give it a try the next time you get your hands on that Tyros.
Good Luck,
Gary
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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!
K+E=W (Knowledge Plus Experience = Wisdom.)