Casiobot,

The ZPI sound in the new WK-3700 is what I believe to be improved over the MZ2000. The ZPI sound system was part of the MZ2000 as I recall. I owned an MZ2000 for awhile and I really have to give the WK-3700 tones the edge.

Yes, it would be nice to have a larger sequencer however, this board hooks so easily to my computer and cakewalk that it is not an issue for me.

I have my WK-3500 and I think I am going to sell it. I am not using it at all now. Anyone interested please email me. As always, it is in excellent condition like new and I have all the original packaging.

Thanks!

-Linda