See #2 Demonstration of Principle in the tech note:
When two sound sources producing identical program are displaced relative to each other, they will combine to produce a unique interference pattern that depends on the observer's location. The interference pattern is a result of the different arrival times from the two sources.
It's messed up from 500 Hz on up, actually, more severely above 1 kHz.
Compare the red curve to the black one. Red is one playing, black is both.
I reversed the phase for the blue curve to highlight where the trouble is.
I am showing worst case orientation, measured on-axis with the lower tweeter, as I recall.
I invite anyone with a pair of speakers and measurement instrumentation to replicate the experiment and post their results here.
Move the mic around and watch what happens on an RTA, for example.
Originally Posted by
BMWCCA
Are the two tweets messing each other up? Would the 052Ti be any different? What would happen if you disconnect one 035ti?
They're all messing with each other. The only thing you can leave running is the two woofs, and you'd have to put a lowpass filter on one of them, at what frequency may be calculated from the wavelengths and the distance between them. See the illustrations in the tech note....