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Part B track 3 XLO Test CD Out of Phase description

"When playing identical ("out-of-phase") signals perfectly matched loudspeakers perfectly placed in a perfect listening room, will perfectly cancel all the Sonic information which would normally appear to come from directly behind the speakers, or from behind (and/or) between them. The only sound that will be heard will be from uncanceled energy reaching the listener indirectly as wall, ceiling or floor reflections and this will have no apparent source."

Hint - Track 3 is used to best effect for proper set-up of speakers that are both determined to be in the same polarity and are equal in radiated power. All other methods of determine ideal speaker locations are like trying to solve X simultaneous equations in X +n unknowns and almost always result in local maximum locations, which are not the very best locations. That's why I said previously the ears alone are not as good as ears with some tools.

Note: Part C of Track 3 Out of Phase information involves improving room acoustics so that the effect of out of phase voice through the speakers, even when they are in the so-called ideal locations, becomes dramatically more pronounced. That's why I intimated earlier that it's difficult to get absolutely great results right off the bat. Rome wasn't built in a day. As Einstein once said, it ain't easy McGee.


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  • Part B track 3 XLO Test CD Out of Phase description - geoffkait 03/29/2214:31:52 03/29/22 (0)

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