Soundsphere Ceiling & Hemispherical Speaker Systems for Sports & Recreation Facilities
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Product Index >> Soundsphere Index >> Soundsphere® Model Q-CS Ceiling Speakers
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SOUNDSPHERE
Intelligible Voice & High Fidelity Music in Large Spaces
Rugged Contstruction...Light Weight....Simple Installation...Big Sound
Unique sphere/reflector combination produces consistent,
full-frequency 360° sound everywhere.

QCS Ceiling Speakers | Model Q-6 | Model Q-8

Soundsphere® Model Q-CS Ceiling Speakers
For finished low-ceiling applications


Soundsphere Model Q-CS Loudspeaker. For finished low ceiling applications The Soundsphere® Model Q-CS flush mount speaker is designed for low-ceiling installations (8' to 14' high) requiring clear voice announcements and full-range music reproduction, even at background levels. Built-in integral 15 Watt transformer.

The Q-CS is the most compact Soundsphere loudspeaker, Applications include health clubs, locker rooms, administrtive offices or any other open areas with low ceilings.

With the Q-CS, you will experience superior results while using fewer units than conventional ceiling loudspeakers. These loudspeakers offer a smooth hemispherical coverage pattern, with flat frequency response and high sensitivity (89dB 1W/1m). The Q-CS utilizes Soundsphere's exclusive patent-pending Broadband Linear Excursion Control to provide high sensitivity and accurate, articulate low-frequency performance. Each unit ships fully assembled and uses a standard tile bridge for 8" speakers.

Q
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C
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Check out these features!
Soundsphere®
Model QCS Ceiling Loudspeaker

For Finished Ceiling Installations Requiring:
Clear Voice Announcements
Full Range Music Reproduction
Smooth Omnidirectional Hemispherical Coverage Pattern
Flat Frequency Response: 55Hz - 16kHz ±4dB
Full Range Music Reproduction
High Sensitivity (89dB 1W/1m)
15 Watts Continuous RMS Power Handling
Coverage: 180° vertical; 360° horizontal
Available Power Taps:
25V, 70V, 100V15W, 7.5W,
3.8W, 1.9W,1W, 0.5W
Dimensions:
Enclosure: 7 3/8” dia x 8 1/8” high
Mounting Flange: 11 7/8” diameter
Grille:12 1/2” diameter x 1 5/8” high
Driver Coaxial: 8” LF,1/2” dome HF
Enclosure Material: ABS Resin
Unit Shipped Fully Assembled
Uses Standard Tile Bridge for 8" Speakers
Weight: 7.25 lbs.
5 Year Limited Warranty by Soundsphere®

O R D E R     N O W

Add QUANTITY for each item
QTY. PART NO. DESCRIPTION OUR PRICE
SSQCS Soundsphere QCS
8" Finished Ceiling Omnidirectional Speaker
(price ea.)
Soundsphere QCS Finished Ceiling Speakers
Call for Price
SSTB1 Soundsphere TB1
Tile Bridge for QCS
(price ea.)
Call for Price
SSPC1 Soundsphere PC1
Plenum Can Enclosure for QCS
(price ea.)
Call for Price


Click
here for full Technical Specifications.
Model Q-CS Loudspeaker dimensions
Model Q-CS Loudspeaker dimensions Model Q-CS Loudspeaker dimensions

Q-CS Technical Data
How many conventional ceiling loudspeakers can be replaced by one Soundsphere Model Q-CS ceiling loudspeaker?

This question comes up every time the conversation turns to the Model Q-CS. The answer requires some discussion:

The true coverage of conventional ceiling loudspeakers
According to their specification sheets, most "higher-quality" ceiling loudspeakers produce a full-frequency coverage field (-6dB from on-axis) of 60°. Beyond this cone of coverage, mid, mid-high and high frequencies are attenuated. These frequency ranges are crucial to speech intelligibility and perceived "smoothness" of coverage.

Ceiling loudspeaker systems should never be heard Listeners should never perceive a ceiling sound system. As listeners move around the coverage area, the sound level and frequency response should not change enough to be noticed. Conventional ceiling loudspeakers, when used conventionally, produce full-frequency sound directly under them and only low frequency sound off-axis. A listener moving from an off-axis position to directly under the loudspeaker cannot help but perceive a change in the soundfield.

So, conventional loudspeakers cannot produce a smooth, full-frequency soundfield?
Of course they can. The reason that they never produce such a soundfield is that too many loudspeakers must be used. In the case of the 60° ceiling loudspeaker in an 8' high ceiling, the loudspeakers would have to be spaced 4-1/2' apart to create such an effect. In a 50' x 50' space, this would require 11 rows of 11 speakers, for a total of 121 loudspeakers. Most conventional ceiling loudspeaker manufacturers recommend a spacing of 10' for an 8' high ceiling. In the the 50' x 50' example space, this would require 5 rows of 5, for a total of 25 loudspeakers. The resulting soundfield is what we have all experienced in ceiling loudspeaker systems. We at Soundsphere consider this result unacceptable.

Why is a system using Soundsphere Q-CS loudspeakers so much better?
The Q-CS provides full-frequency response throughout a hemisphere. Therefore, spacing of speakers is based solely on the inverse square law. For a 3dB variation in direct field level at an 8' mounting height, the Q-CS can be spaced 14' apart. In the 50' x 50' example space, this would require 4 rows of 4 speakers, for a total of 16 loudspeakers. With a conventional loudspeaker system, even using 9 more speakers would not produce the same smooth, full-frequency, diffuse soundfield that the Q-CS system does. If you really want to compare apples to apples, it would require 121 conventional ceiling loudspeakers with equalization (to reduce the low-frequency output) to equal the performance of 16 Soundsphere Q-CS loudspeakers.

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