Owner`s manual

PAGE 12 Community Solutions™ Owner’s Manual
5 GENERAL DESCRIPTION
The Community Solutions loudspeaker systems are electronically-controlled speaker systems with
features and functions designed for both permanent installation and portable applications. There are
two product groups: the SLS series of full-range loudspeakers and the SBS series of subwoofers. From
the smallest to the largest model, the SLS and SBS products represent Community’s commitment to
meeting the audio requirements for sound reinforcement with performance, quality, and reliability.
All SLS models are designed to cover the full audio range except for the extreme bass frequencies. All
drivers are horn-loaded for maximum efficiency and pattern control. Wavefront Coherent™ technology
provides optimum signal alignment of the different drivers by mechanical positioning. For additional
bass output at the extreme low end of the audio frequency range, the SBS subwoofers are used to
produce added depth and impact. The SBS subwoofers are vented designs and are manufactured to
precisely match corresponding SLS models both in terms of their enclosure sizes (except the SBS45)
and acoustic performance.
MODEL TYPE LOW
FREQUENCY
MID
FREQUENCY
HIGH FREQUENCY
SLS915 2-way full-range (2) 6.5” (165
mm)
n/a (1) 1” (25 mm)VHF100
SLS918 3-way full-range (1) 12” (305 mm) (2) 6.5” (165 mm) (1) 1” (25 mm) VHF100
SLS920 3-way full-range (2) 8” (203 mm) (1) 2” (51 mm)
M200
(1) 1” (25 mm) VHF100
SLS960 3-way full-range (2) 10” (254 mm) (1) 2” (51 mm)
M200
(1) 1” (25 mm) VHF100
SLS980 3-way full-range (2) 15” (381 mm) (1) 2” (51 mm)
M200
(1) 1” (25 mm) VHF100
SBS12 Vented subwoofer (1) 12” (305 mm) n/a n/a
SBS22 Vented subwoofer (2) 12” (305 mm) n/a n/a
SBS25 Vented subwoofer (2) 15” (381 mm) n/a n/a
SBS45 Vented subwoofer (4) 15” (381 mm) n/a n/a
Table 1: Product Listing
5.1 Drivers
The SLS and SBS systems use proprietary drivers designed and, in the case of the compression drivers,
built by Community using the latest technologies in materials.
5.1.1 High Frequency Driver
The high frequency driver for all SLS systems is the 1” (25 mm) exit, VHF100 compression driver with a
Mylar ring radiator diaphragm. Only the center of the diaphragm is used for support with the voice coil
attached to its perimeter. This allows for a relatively large voice coil diameter providing low inductance
and very high peak power handling capabilities in excess of 100W. At the same time it provides the
small diaphragm area necessary to reproduce the small wavelengths of the highest audible
frequencies. The first diaphragm break-up mode is beyond 18 kHz – a remarkable achievement for a
high power tweeter.
5.1.2 Mid Frequency Drivers
The SLS920, SLS960 and SLS980 systems feature the M200 midrange driver. This 2” (51 mm) exit
compression driver has a tough, low resonant frequency Mylar diaphragm and suspension. Its long
excursion capability accommodates a low 1.8:1 compression ratio design that results in exceptionally
low distortion. The large magnetic structure and large, edge-wound voice coil provides high
sensitivity along with a high 75W RMS power handling capability down to 400 Hz. The SLS915 and
SLS918 midrange is reproduced through their dual 6.5” (165 mm) cone drivers described in SECTION
5.1.3.