Originally Posted by eimajnacnud
So which sounds better, the bitstream without audessey or the pcm with?
Before I even considered getting a receiver with Audyssey, I've spent a lot of time experimenting with different speakers, speaker layouts, room treatments, etc. and now I have a well correlated 5 speaker system that is reasonably flat WRT to the frequency response. As a result, the FLAT option, that the Audyssey MultEQ provides, practically has no corrections in the frequency domain (less than +/-1.5 dB db in a typically 2-3 EQ bands per each speaker or so). Hence, when listening to the music when either FLAT or FRONT is selected, there is practically no audible difference between HBR decoded onboard and no EQ or PCM with Audyssey EQ.
However, the AUDYSSEY curve, obviously, sounds very different and you don't need the perfect ear to clearly hear the dissimilarity.
Also, if I ever decide to get new speakers or even add a piece of furniture in the media room, etc. then I might actually need the room EQ correction even if I keep using the FLAT option. Isn't this the whole purpose of the Audyssey MultEQ? Why should it at all depend on the format of the input signal? Again, assuming, of course, that the onboard DSP has enough computing power for both HBR decoding and EQ.