The last not priority design on the 62 voice Korgs handle the drop outs better than the 126 voice Yamaha's..and the Roland 64 voice[G1000] handles this even better than the Korg..
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my 9000 does'nt even come close to losing it's horsepower with it's 126 engine capabilities..can you tell me exactly which voices you were using..i cannot fathom a gutless 64 voicer outperforming a 126'er..!