I'm glad that we're getting to talk about IIR and FIR. I thought I read long ago a post that Daniel Weiss wrote in which he explained that his linear phase eq was the only one out at the time which was FIR. I believe that he stated that FIR is best (most transparent?) for linear phase eq. There was an early Arboretum plugin called Ionizer which was linear phase (128 bands), but I believe that it uses IIR filtering. Bruno, or DC, can you please clarify this recollection, and, if true, are there any _minimum phase_ eq'z that use FIR?
Andrew