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Re: vertical dispersion question

Factors that would contribute to wide vertical dispersion in various ways would be small diameter round tweeter (no thin vertical ribbons), small diameter midwoofer, low crossover point, steep crossover slope, and non-rigid drivers (operating in breakup mode rather than as rigid pistons).

A strong reflection off the ceiling is likely to be detrimental, as is a strong floor-bounce reflection. Unfortunately most speakers have very wide horizontal as well as vertical dispersion right smack in the frequency region where the ear's sensitivity to loudness and distortion also peaks: Three to four kilohertz.

I hadn't stopped and thought about it until just now, but four of the five speaker brands I sell are made up exclusively of models with limited vertical dispersion, and half the models of the fifth brand have limited vertical dispersion. So I guess I've voted with my wallet in favor of limited vertical dispersion.

Duke

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