If you look at the sparse MulEQ XT32 documentation available on Audyssey's website, they mention that XT32 is basically the same technology as XT but with 512X more filter resolution than their basic MultEQ 2EQ technology, i.e. 32X more resolution over plain XT for satellites and 4X more resolution for subwoofers. They also state that XT32 now has more than 10K control points (filter points). Tact Audio's digital room correction systems are also known to be over 10K filter points over the entire audio range (20-20KHz). It's been a criticism by Tact Audio aficionados and some audiophiles that Audyssey's MultEQ XT has an amount of filter points that's too low and somewhat insufficient. But I think maybe we should continue this topic on other threads like the: "Outlaw model 978 vs. Emotiva XMC1".