I just ordered a UMIK-1 to start using REW to measure my system and reading up on it I keep seeing references to using a minidsp to apply the filter corrections from REW to fix what the mic reads. How much better would the minidsp be vs just using the graphic EQ built into my Onkyo TX NR 676 receiver? The 676 allows me to EQ each speaker separately with 9 bands (25hz-16khz +-6db) for each speaker, and 5 bands for the sub (25hz-160hz +-6db). Of course there's no Q factor so I can't adjust band width.\n\nIs the idea that the MiniDSP has more exact control of bands (qfactor), a higher quantity of available adjustments, and\/or a greater decibel amount for each adjustment? Is this really that dramatic of an improvement over Onkyo's graphic eq?\n\nMy system is a 3.1.4 based on Klipsch RP280s, 4 in-ceiling 8" Miccas, and a monolith 15" sub in a 5000+ cuft great room. I'm trying to see if I need a second sub and also just even out my frequency response in general. And also have some fun!\n\nThanks in advance!