QSC ILA Series Installation

Features of the WL2082-i
• Installation-optimized design brings affordable and
uncompromised line array performance to a broader range
of venues
• True line array performance – individual speaker elements are
designed to function in a coherent array
• Compact and attractive appearance, available in black and white,
harmonizes with any installation environment
• Wide 140° horizontal coverage
• Economical and easy-to-install suspension system with ample
array adjustability
Features of the WL115-sw
• Single 15" subwoofer in a 4th order bandpass enclosure
• 650 watt power capacity
• Frequency range to 35 Hz
• May be suspended at the top of a WL2082-i array or behind the
array (requires optional accessory items)
• Available in black or white to harmonize with venue décor
Line array systems have become the primary
loudspeaker configuration for tour sound
and many large installations. With the advent
of the WideLine WL2082-i Installation Line
Array (ILA), QSC offers a professional system
at breakthrough pricing making line array
performance accessible to a far broader range
of house of worship and performance venues.
Most line array systems currently available are
designed for touring applications. As a result,
the overall system cost is driven beyond the
means of many facilities that could benefit from
line array acoustic performance. By focusing
on installation applications, using a molded
enclosure and simplifying the rigging design,
QSC was able to drive cost out of the system
while retaining the sound quality, coverage and
power of high end touring systems.
Each Installation Line Array element uses a
pair of high-power, neodymium magnet, 8"
diameter low-frequency drivers in a two-and-a-
half way configuration. Both woofers produce
low frequencies but only one covers the mid-
range resulting in more uniform directivity in
the crossover region. For high frequencies, a
pair of 1.75" (voice-coil diameter) neodymium
compression drivers with titanium domes are
mounted on a multiple aperture diffraction
waveguide that provides extremely wide
coverage (140º). As a result, a WL2082-i
system will rarely require additional side or
center fill speakers and solid stereo imaging is
preserved across the listening area.
The system may be used in bi-amplified or
tri-amplified mode. In general, the tri-amplified
mode will produce the best performance and,
for arrays larger than four boxes, will not
increase the total cost of system amplification.
The low-frequency range of a WL2082-i array
will be adequate for speech, voice and many
acoustic music uses. For reinforcement of
program material with more demanding low
frequency content a companion subwoofer,
the WL115-sw, is also
WL115-sw is a 15" subwoofer using a 4th order,
bandpass enclosure. Tooled ports with gently
rounded terminations inside and out eliminate
port turbulence distortion. Mesh grilles are
integrated into the port design to obstruct the
entrance of foreign objects into the enclosure.
Many users of line array systems have found
that suspending the subwoofers with the array
provides audible benefits. In addition, some
ILA Series
venues lack room for floor mounted subs. For
these reasons, the WL115-sw includes rigging
hardware and, with selection of the appropriate
rigging accessories, subwoofers may be flown
at the top of an array or behind as pictured.
Rigging for the ILA is simple, flexible and safe
providing a 10:1 design factor with twelve
WL2082-i systems in the array (see the owner's
manual for details before planning any array
suspension). The array is assembled with the
included bolts and the relative angle between
adjacent boxes is adjustable in 1º increments
for precise tailoring of vertical coverage. For
those who prefer quick release pins to the
included bolts, an optional kit of four quick
release pins is available.
available. The
Available in black or white, the WL2082-i
enclosure is made of high impact polystyrene
with extensive internal ribs to eliminate acoustic
losses due to sidewall flex. The Installation Line
Array may be used in outdoor applications
where the system is not directly exposed
to the elements. The enclosure material is
formulated with UV inhibitors, the grille is
made of aluminum and the woofer cones are
weather resistant.
Installation Line Array
WL2082-i | WL115-sw