The bass is out of this world. It is tighter, yet goes deeper... The lower midrange saw a equal improvement.
I am also eager to try No Rez. But while I am expecting "cleaned up", less boxy (tigher) sound in the bass and midrange, I don't personally expect the bass to be deeper per se (i.e., as measured). But subjectively,getting rid of the panel noise presumably improves the signal-to-noise, and thus less coloration could certainly -seem- deeper as a result of being cleaner. Perhaps it's less a question of the bass fundamentals and more a question of the harmonics.
Adding mass to each panel presumably lowers its resonant frequency, as well as (I would think) the amplitude of the resonance. If the bass becomes measurably deeper per se, I'd actually wonder if I hadn't shifted the resonance down to a lower, more pleasing place (i.e., like a passive radiator). But No Rez obviously engineered beyond simply adding mass, and looks really promising for my situation.
Anyway, I'm very excited to try this, and compare to the opposite approach (stiffening). Obviously both strategies are complementary and I look forward to hearing them combined somehow.