Okay, here is my personal (non-DBT) subjective experiment (n = 1
).
Without the 4 large Acoustics Panels:
I listened to a song. Ran Audyssey x 8 locations on Denon AVR5308. Ran Audyssey again just to make sure. Audyssey basically did not make any drastic changes to my setting. And the sound is exactly the same after Audyssey.
With the 4 large Acoustics Panels (one in each corner):
I listened to the same song. I heard absolutely no difference whatsover. Ran Audyssey x 8 locations on Denon AVR5308. Ran Audyssey again just to make sure. Again, Audyssey basically did not make any changes to my setting. And the sound is exactly the same after Audyssey.
Conclusion: I Wasted $500 of my good earned money on the 4 large Acoustics panels.