yes. sorry i forgot that the kawai's also share a model number.
actually there was never a Kawai K2000, only K1,K3,K4, K5 and K5000 (and another K1, K1 II or something like that)
yes, there definately is a shaping filter. and i'm pretty sure that it does not include any resynthesis.
i just found this (not about the k2000, but probably similar:
"The resonant filter is actually an FIR Comb filter with very tight bands. In addition, it is pre-programmed with an envelope shape for a really dynamic sweeping effect."
so something with bandpass filters would be great, which are used for formant filters and vocoders. Have you checked out the Lattice filter object? Of course these approaches are not as precise as resynthesis but have a destinct sound without the additive sparkle. I am about to create a morphing filter synthesizer with some bandpasses in pd with the Emu Morpheus in mind. Although they interpolate the filter coefficients to create the dynamic morph. Can the biquad or FIR objects do this? How dynamic are they, I nether tried them... I once wrote a nasty digital sounding VSTi (as opposite to the 303 clones) called Microcomputer, not the biggest financial suggest due to its alien nature. Its filter also blend between different coefficients but it could easy get unstable. Coefficients are sort of small convolution anyway...
Cheers,
Malte
Malte Steiner media art + development -www.block4.com-