I know ARC claims to utilize the impulse and time domain measurements m in a ksdhflksjdfhmumbleashkjasdamumbleiuashsdfh manner, but the silence is a bit deafening in that they never seem to show the objective results of the process by which an original response is magically transformed into an optimal 'improved' response, be it via the before and after of the impulse, doublet, ETC, Nyquist, Heyser spiral or even the frequency, coincident, quadrature, EFC or any other objective reproducible means.
At that point all we ever seem to hear are emotional testimonials and vague assertions regarding the amazing improvements in wqeoiwueormumblekasjdfklashdfsmumblekasjdfksadhfas...