Paul's right. I was refering to the PA80 vocal/guitar board. The Yamaha problem is evident when you play the best sounds layered with the best sounds and try to play big chords with the right hand. If all you do is use the arranger and play melodies, or simple chords - you may not notice it, but I need to be able to lay into thick piano/string pads and I use the sustain pedal alot so it's a wash for me. Even with all the rhythm OFF - try this:
Layer the #1 piano with the #1 string sound and play a two handed piano style song with alot of sustain like......Memory or All I ask of you - something juicy like that. It coughs like a dying smoker. Most of the better sounds have too many notes tied up in the sound to be effective in layering. 126 goes like lightning when every finger uses up 16 or more partials. Adf the sustail to that and you hic-cup like crazy.