@nuromantix Those early digitals are all like 12 or 16bit and 22khz, lower nyquist frequency means aliasing effects are in different frequency band which you may find more agreeable or are so used to working with you don't even really notice. This probably accounts for most of the difference. The output amps and DAC probably play some role as well.
I agree on the xpander's filter, it is generally not very useful to have cascaded filters with the same cutoff and resonance settings, differences between the various modes is small and for the most part the bulk are ignored, but once in awhile they do come in handy. My morphing filter seems more useful but as I said in that post, I do not really do audio in pd and that was just for fun, i have never actually used it. I find the morphing effect more natural than a sweep and combined it can be quite impressive, but it depends on what you want to do. One of these days I will get around to finishing it, only need to figure out the new mix ratios so the resonance never cancels, but it is not a priority and I was sort of hoping someone else would have finished it and uploaded their results. It is kind of laughable that I have not finished it yet, 5 minutes work tops. Perhaps this weekend.