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RE: example

Yes this is a tough challenge and why i said "I don't know of a way to do this with direct radiators above low frequencies, above that arrays of driver are individual sources and while one can form a beam, the energy time envelope also shows individual arrivals in time a "time distortion" of the input impulse."

The problem is seen most clearly at the other end where say at 10Khz, even a great compression driver on a horn has very low efficiency and 105dB 1w 1m only achieved by a very narrow pattern up high.

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