Meyer Sound MSL-10A User Manual
MSL-10A
High Power
The Meyer Sound MSL-10A is an
Loudspeaker
System
Features
Extremely High Power
Exceptional Clarity
Point Source Arraying
Weatherproof Hardware
Long-Term Reliability
Applications
Paging and Announcing
Outdoor Sports Arenas
Stadiums
Racetracks
Large-Scale Touring
Concert Reinforcement
extremely high-power, high-performance
loudspeaker system designed for large-scale
music reinforcement and public address
applications.
The MSL-10A System comprises an allhorn, integral full-range loudspeaker
cabinet constructed as a 30-degree
arrayable section, and a 19" electronics
rack (on wheels) housing the M-10A
Control Electronics Unit, three MS 10
Power Amplifiers and an Interface Unit.
The minimum standard MSL-10A
configuration comprises two loudspeaker
cabinets, each with its own electronics
rack. Additional MSL-10A cabinets may be
employed as modular 30-degree building
blocks to increase the coverage and
acoustical power of the system, providing
extensive flexibility to meet specific
application requirements.
MSL-10A Loudspeaker
Fork lift brackets
(top & bottom)
High frequency
horns
Low frequency
horns
Enclosure Features:
• High Q maximizes
reverberation control
• Modular, arrayable design
for predictable, coherent
coverage
• High acoustical output
with low distortion
• Rugged construction
• Internal environmental
heating/cooling system
• Extensive weatherproofing
for long-term reliability
• Stainless steel hardware
throughout
• Rigged for transportation
and installation
Reflex port and
enclosure
ventilation
High frequency
driver service
Serial number
Low frequency
driver service
access
Speaker
connector
plate
access
Front View
Rigging
points
Hatch handle
Environmental power
indicator
Environmental power
connector
Environmental circuit
breaker
Rear View
The MSL-10A Loudspeaker cabinet is
fortified for long-term reliability in outdoor
installations, and is thoroughly inspected at
several stages during assembly. Constructed of high-grade Finnish birch
hardwood, the enclosure is resin-impregnated in critical areas, bonded with
structural epoxy adhesive, and coated with
a finish that tolerates cabinet swelling
without cracking. Thermostaticallycontrolled environmental heating and
cooling systems, which receive power from
the MSL-10A Rack, ventilate the cabinet
and stabilize its interior temperature.
The MSL-10A cabinet is internally
damped and braced for maximum energy
transfer and highly intelligible reproduction of voice and music — which is
especially important in acoustically difficult
environments. Internal and external steel
bracing and integral all-steel rigging points
ensure safe, efficient installation, and
integral forklift brackets ease handling.
Component Quality and Linearity
The MSL-10A Loudspeaker employs
driver components whose design, construction, and testing have been proven in over a
decade of demanding professional use. The
transducer magnetic circuits and suspen-
sions have been optimized for maximum
linearity, resulting in extremely low
harmonic distortion and consistent sonic
accuracy at all dynamic levels. Ferrofluid
cooling and back-vented gaps and pole
pieces maximize power handling, and
water-resistant treatment of all driver
elements ensures greatest reliability in
outdoor installations. Gold-plated contacts
and stainless steel mounting hardware
resist corrosion.
Rigorous Testing
The M-10A Control Electronics and
MSL-10A Loudspeaker components are
individually and fully tested at several
stages of manufacture to ensure maximum
reliability and minimum component
failure.
Each driver is subject to an eight-hour
dynamic burn-in to test for power handling
and peak excursion performance, and
thorough computer-based testing prior to
shipment ensures optimal system operation
upon installation.
Finally, the MSL-10A System has
undergone years of field testing in stadium
installations and touring reinforcement,
resulting in a mature, refined technology
that offers unmatched performance.
Acoustical System
Frequency Response
Maximum SPL at 100 feet
Continuous
Peak
HF Coverage, -6 dB points
Horizontal
Vertical
MSL-10A Loudspeaker (one 30° section)
Driver Complement
HF DC Protection
Enclosure
Finish
Protective Grill
Rigging
Dimensions
Weight
Power Requirement
Connectors
1
2
70 Hz - 16 kHz ±4 dB
110 dB
120 dB
60 degrees
40 degrees
(4) MS-12 12-inch cone drivers
(3) MS-2001 2-inch horn drivers
50 µf polypropylene capacitor
Vented, horn-loaded, 12-ply hardwood
Weatherproof black coating
Three-piece expanded metal screen, damped
Eight points, 3/4 inch rigging holes in steel cradle
41" W x 85" H x 35" D
700 lbs (318 kg)
200–240 VAC, 3A (heater and fan supply)
Pyle with weather cap, heavy-duty AC in, weather
protected
Notes:
1. Acoustical specifications
are given for the minimum
configuration of two 30°
sections.
2. Measured 100 feet on axis,
half-space conditions,
pink noise input, in thirdoctave bands.