Can anybody help me with this? besides i'd like to know some good or bad experiences with this models.

thanks

Same sound engine in both. The key feel on the JV80 is more professional than the JV90. The 90 has 76 keys, the 80 has 61. Both are discontinued and should be fairly inexpensive now. I'd rather have the 80 for the keyboard feel. The 90 feels like junk - really wimply and spongy. ew

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Uncle Dave