Brother,I'm very impressed by FIR filtering to say the least. The things you can do with it far outshines any traditional IIR-type filters. I would never go back to a traditional DSP-setup nowadays.
Symmetric FIR filters are nice (and sort of causal in the mathematic sense), but the concept of asymmetric filters and group delay decolouring means that one can pretty much correct everything except for perhaps the impulse response of the speaker. One can get the output of the speaker to be much closer to the input signal.
So I figured why start with an IIR DSP(?)... when I can enter in with a FIR based DSP(?). It seemed to be more towards being on the best (leading) edge of technology. One can do this on a computer, but Raimonds is doing it on an imbedded ASIC chip or something like that. I support that R&D and hence I got his product. Hopefully it has enough of a following to stay supported and in-production. It seems from the specs to be pretty special. Over time the approach should be common place, as it is technologically optimal.