Alternatives To Overhead Speakers; Dolby Atmos Enabled Speakers - Pioneer Elite SC-89 Operating Instructions Manual

Mounting considerations
If the chosen overhead speakers have a wide dispersion pattern (approximately 45
degrees from the acoustical reference axis over the audio band from 100 Hz to 10
kHz or wider), then speakers may be mounted facing directly downward. For
speakers with narrower dispersion patterns, those with aimable or angled elements
should be angled toward the primary listening position.
Room treatment considerations for use of overhead speakers
For optimal performance, the overhead speakers should be at least two times the
height of the listener's ear level (this generally applies to on-ceiling speakers, which
may be installed lower than the actual ceiling height).
Sound-absorbing and sound-diffusing treatment for handling reflections from the
walls, floor, and ceiling are recommended to improve sound quality and reduce
unwanted audio reflection.

Alternatives to Overhead Speakers

Installing overhead speakers may not be possible or desirable for your client.
Installing speakers overhead and running the necessary wiring can be expensive and
time consuming. If your client rents the home, the property owner may not allow it.
And if the ceiling is made of a material such as concrete or brick, installing speakers
overhead may not be possible. Finally, your client may not like the look of overhead
speakers.

Dolby Atmos Enabled Speakers

Through our knowledge of psychoacoustics and sound physics, we've developed
speakers that can create overhead sound even though they're only a few feet off the
floor. Dolby specifies filtering characteristics for these speakers that amplify the
perception of sound originating overhead. Employing a predetermined angle of
incidence in the speaker cabinet, the speakers direct sound upward, where it reflects
off the ceiling to produce an incredibly accurate and lifelike recreation of overhead
sound. The performance of Dolby Atmos enabled speakers must be experienced to
be believed.
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