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Hello,


Purchased a demo Yamaha RX-V667 from Best Buy. They threw in an Audyssey mic because they did not have a YPAO one available.


Yamaha tech support says that the Audyssey mic will work but will not do the most optimal job.


Best Best says that the Audyssey mic will work just fine to setup the receiver.


Does anybody have any thoughts on this?


Thank you.
 

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Best Buy is either uninformed or lying to you. The Audussey mic will not work as well as the Yamaha mic. The reason is very simple: For accurate room analysis you need an accurate mic with flat response. The mics supplied with receivers are very cheap and not very accurate. To make up for that, the receiver has built-in calibration to compensate for the mic’s inaccuracies. IOW, the mic and receiver are a “package” that work together.


For example, let’s say the Yamaha mic has a spike in response at 2.5 kHz. The receiver will be calibrated to counter-act that peak and therefore “see” flat response through that range. And let’s say the Audyssey mic has a peak in response at 4 kHz. What happens when you use the Audssey mic with the Yamaha receiver? Well, the receiver will still apply a counter-action at 2.5 kHz and give you a “hole” in response in that range. And since the receiver isn’t looking for compensation at 4 kHz, it will see the Audyssey mic’s spike as a problem in room response that needs correcting. And it will “correct” it, giving you another “hole” in response, at 4 kHz.


Make sense? Bottom line, you only want to use the correct mic.


Regards,

Wayne A. Pflughaupt
 
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