Earlier quoted context omitted.
AFAIR, it was a stock Motorola DSP. The only that was odd about it was that it was mounted on the motherboard. You could (and I did) get access that sort of DSP through daughterboards before the Cube, but NeXT took the step of saying "this ought to be a part of the computer itself". I really disagree about it as a direct ancestor of the contemporary plugin API. These have always run on the host CPU, not dedicated DSP…
> I really disagree about it as a direct ancestor of the contemporary plugin API. These have always run on the host CPU, not dedicated DSP chips (excluding of course Digidesign's original ProTools model, but that was DSP farm rather than just a chip). That's like saying "computing in the 80s was all about the home computer market, if we exclude the PC". ProTools was the biggest name (and quite close to a monopoly for…
ProTools had a separate box that had the DSP farm in it. There was nothing particular unique about that (at the time) (though running a DAW on it was definitely novel when they did it).