Re: Small install spkrs with narrow coverage
While it has no bearing on the OP, one of the interesting features of a parabolic dish is the pattern of the sound source makes virtually no difference in the output, as long as it originates at the focal point.
I have used a 11 degree conical horn, full range speakers, and small two-way monitors as the sound source using a 60 " parabolic dish, and later a 45" square dish. In every case, sound was quite coherent in excess of 500 feet.
Pattern control widens from about 10 degrees up high down to omni low, so at distance the sound "thins out", and at very long distance, HF air attenuation cuts HF, but there is nothing "really screwed up", other than a very narrow pattern.
