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Join Date: Jul 2003
Location: SF Bay Area
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Audyssey, MCACC and YPAO all use a calibration microphone. People have varying opinions on which one is better.
Audyssey MultEQ will EQ the subwoofer as well as the satellite speakers. The other two don't EQ the sub but they will set channel volume level, distance and a crossover point.
MCACC is more customizable and can be tweaked more by the end user that Audyssey.
YPAO is probably the most basic of the three. At least it is on their entry level models. It uses one set crossover for all speakers whereas Audyssey and MCACC can have separate crossovers for the front, center and surround speakers. If your speakers are all decent bookshelf size or larger this isn't a big deal if they can be crossed over at 80hz and the subwoofer can handle the lower frequencies. But if you have large towers or bookshelf speakers up front and small satellites for surrounds you probably want a calibration system with multiple crossover points. The Yamaha will set the crossover based on the smallest speaker.
Your Infinity hts-10 surround package is comprised of 4 satellite speakers and a center. The Yamaha would be fine with those as the speakers are all the same size.