Community Distributed Design D4LP Installation And Operation Maintenance Owner's Manual page 2

Thank you for selecting the Community
speakers. Whether you chose them because
they deliver exceptionally high quality sound,
Distributed Design Series™ of ceiling loud-
because they have predictable, uniform cov-
erage so spaces are easy to lay out, because
they are easy to install and save time, or
because they are very competitively priced
for such a high-performance, durable loud-
speaker, you can have confidence you made
the right choice.
The Distributed Design Series is ETL listed
to UL1480 and UL2043 and CSA 22.2 safety
standards and built to satisfy safety agency
standards, with quality assured by Com-
munity's long history of building high-per-
formance, durable loudspeakers for sound
reinforcement and contracting applications.
The Distributed Design Series is comprised
of these seven models:
Model Diameter
D4LP 4.5"
D4 4.5"
D5 5.0"
D6 6.5"
D8 8.0"
D10 10.0"
Each model is available as a complete assem-
D10SUB 10.0"
bly, including everything needed for standard
installations, or you can purchase packages
for the face portion only or the back can por-
tion. Each of these packages has components
for two loudspeakers. The D4LP Low Profile
model fits where deeper units cannot and
may be retrofitted into existing shallow cans.
Except for the D10SUB subwoofer, each of
the other six models is a true coaxial loud-
speaker. This means it has a real compression
driver concentrically arranged so that the up-
per frequencies emerge through the center of
the low-frequency driver's magnetic struc-
ture and cone via a precisely tapered Tru-
cial construction provides consistent, wide
dispersion right up to 16 kHz, all but elimi-
Phase™ high-frequency waveguide. This spe-
nating high-frequency narrowing. You don't
have the reflection and diffraction problems
at multiple frequencies found with "straight
tube" coaxial loudspeakers, simple "whizzer-
Community Distributed Design Series
Introduction
Response
114.3 mm full-range
114.3 mm full-range
127 mm full-range
165.1 mm full-range
203.2 mm full-range
254.0 mm full-range
254.0 mm subwoofer
Installation and Operation Manual
cone" loudspeakers, or front-mounted soft
dome high frequency loudspeakers (typically
found in ceiling speakers at this price point)
that attempt to emulate a true coax design.
Further pattern improvement is achieved by
precisely mounting the low frequency driver
(and its' concentric HF driver) dead-center in
the baffle, as contrasted to the offset designs
used by many others.
Most competitive ceiling loudspeakers typi-
cally have a half-inch or greater, "step" in
their face where the grille is attached, and
the low-frequency driver is rear-mounted
behind the grille plate. Such designs produce
unwanted reflections and diffraction effects
such as frequency response peaks and nulls,
polar irregularities, and phase response
problems. To avoid these issues, Community
Distributed Design baffles are very close
to the grille (less than 1/8 inch away). The
loudspeaker baffle and ceiling thus form an
uninterrupted planar surface for diffraction-
free HF driver acoustic loading and a smooth,
predictable pattern. This makes it easy to lay
out your loudspeaker installation for opti-
mum coverage without those unwanted dead
zones or too-loud overlaps.
The Distributed Design Series saves you
money in several ways. (a) Their powerful
magnetic structures and efficient coils ensure
high output, which gives you more headroom
per power amplifier so you can use a smaller
amp that will save you money. (b) These
loudspeakers are very competitively priced
and (c) Community designed this series with
place-through-the-cutout Tile Support Bridge
Rails, Drop-Stop™ installation assistant tabs,
Twist-Assist™ loudspeaker face retainer tabs,
and other innovations so that one person
on a ladder is easily able to install the loud-
speaker in the ceiling. Overall, this saves a
tremendous amount of time and labor during
the installation. You can use 8-ohm or con-
stant voltage distribution for which you get a
70 volt / 100 volt transformer built in.
We urge you to read these instructions care-
fully and familiarize yourself with the features
and installation methods before you begin
the job. If you have any questions or concerns,
please contact Community right away.
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