Implementing FIR filters isn't that hard, but developing them so they don't sound like shite is less than trivial. Our first attempts sounded like spoons being banged on old radiators - crazy pre-ringing.
Most impressive. Your's doesn't have that low-fi grain/mud and lack of life that every other eq (or any dsp) has pro or consumer i have tried. I'm religious in this and usually hatered comes from me regarding dsp-s.
HD800 preset though coupled with my cranium + some rug liner mod have way too much bass and some weirdness in upper treble.
The upper treble thing is at least partly due the mod (guessing), though some dizziness is unlikely due to the mod. Bass is easy to fix with the bass slider.
Point by point:
- more depth and frontal projection in headstage, somewhat less width and slight confusion in imaging (needs verifing). Makes me wonder whether some cross-feed is being used?
- tonal balance is definently closer to Genelec 8050 than before. I don't know yet what to make out of this, will listen more.
- I like the bass quality. Though this is entry-basshead levels of quantity, generaly not my thing, but at times

....
- No apparent lack of dynamics and fluidity.
- Treble is sometimes sizzling and slightly grating.
- Maybe some slight microdynamic compression
- Aids the mod in shelving excessive brightness
- Less shouty in some tracks mic-ed closely
Will report back with more complete impressions. Definently recommend to pirates!