Meyer Sound MSL-10A Speaker System User Manual


 
Operating Instructions
Meyer Sound Laboratories, Inc.
2832 San Pablo Avenue
Berkeley, CA 94702
MSL-10A
Loudspeaker
The MSL-10A loudspeaker is designed to function as a
modular building block capable of being arrayed in mul-
tiples to satisfy a wide range of acoustical power and
coverage requirements.
Configured as a tightly controlled 30-degree section, the
MSL-10A cabinet features a trapezoidal construction
which forms curved arrays. MSL-10A’s in an array com-
bine acoustically in a seamless fashion to form a radiat-
ing arc, producing uniform, coherent wavefronts over the
angle subtended by the array.
The propagation characteristic of an MSL-10A array
thereby closely approximates that of a theoretically per-
fect pulsating gas sphere — but rather than being omnidi-
Arraying and
Rigging
rectional, the radiation is confined to an area that is
controlled by the array configuration. This yields excep-
tional intelligibility in reverberant environments, with
substantially the same sonic character in both the near
and far field – a critical advantage in large-scale sound
reinforcement.
To expedite arraying and installation, the MSL-10A is
fitted with an integral rigging system. Comprising steel
braces on the cabinet sides and convenient fork lift feet
on top and bottom, the rigging system eases handling
and provides secure points from which to suspend the
cabinet. In conjunction with an accessory spacer/
hanger bar, it also facilitates coupling adjacent cabinets
to form rigid arrays.
Rig from spacer/hanger bar
Do not lift or
hang from
fork lift feet
Spacer/hanger bar
Wide Horizontal
Arrays
The minimum MSL-10A configuration is two cabinets (as
shown above).
Coupled side-by-side, the minimum configuration of two
cabinets delivers 60 degrees horizontal coverage.
Spacer/hanger bars and case-hardened steel bolts join
the cabinets together and provide rigging points for
hoisting.
To increase the horizontal coverage of the array, one or
more cabinets may be added as shown in the illustration
to the right. Each cabinet added to the array extends its
horizontal coverage by 30 degrees while maintaining a
consistent 40 degrees of vertical coverage.