Meyer Sound M1D - Manual (Page 7)

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INTRODUCTION
HOW TO USE THIS MANUAL
As you read this manual, you’ll find figures and diagrams
to help you understand and visualize what you’re reading.
You’ll also find numerous icons that serve as cues to flag
important information or warn you against improper or
potentially harmful activities. These icons include:
A NOTE identifies an important or useful
piece of information relating to the topic
under discussion.
A TIP offers a helpful tip relevant to the topic
at hand.
! A CAUTION gives notice that an action can
have serious consequences and could cause
harm to equipment or personnel, delays, or other
problems.
INTRODUCING THE M1D AND M1D-SUB
LOUDSPEAKERS
As part of Meyer Sound’s M Series™, the M1D ultra-
compact curvilinear line array loudspeaker and M1D-Sub
ultra-compact subwoofer bring singular advantages to
small venue applications. Self-powered, with QuickFly®
rigging and Meyer Sound’s RMS™ remote monitoring
system as standard, the loudspeakers can be deployed
as self-contained systems or configured along with other
Meyer Sound loudspeakers in more complex systems.
Operating at a frequency range of 60 Hz to 18 kHz, the M1D
loudspeaker’s extremely compact enclosure (Figure i.1)
enables it to function discreetly, yet it provides extraordinary
sound quality and flexibility.
Figure i.1: M1D ultra-compact curvilinear array loudspeaker
Multiple M1D loudspeakers can create very compact
vertical curvilinear arrays of up to 16 cabinets with a 7:
1 safety factor, having 0˚ to 8˚ of splay between adjacent
units. Vertical coverage can be tailored by varying the
number and splay of cabinets in the array, while maintaining
a consistent 100˚ of horizontal coverage.
To reproduce high frequencies, the M1D employs three
high-power neodymium magnet metal dome tweeters
coupled to a horn with a 100˚ constant directivity horizontal
pattern. The tweeters act as a small line array, affording very
tight vertical coverage while utilizing the M1D wave guide
to provide wide horizontal coverage. Vertical coverage of a
single M1D loudspeaker is restricted to approximately 10˚
(±5˚) making it ideal for applications that require very precise
and narrow vertical coverage such as front fill.
NOTE: Please read this entire manual
carefully before configuring and deploying
the system — particularly sections concerning
safety issues and important cautions.
To ensure smooth response in the critical midrange, the
M1D loudspeaker incorporates a complex crossover
design. At the lowest frequencies, two 5-inch cone drivers
combine to reproduce coherent bass, while in the mid
frequencies the crossover feeds only one of the two drivers.
This technique, used sucessfully for many years in Meyer
Sound's UPM loudspeakers, eliminates interference near
the crossover frequencies and maintains optimal polar and
frequency response characteristics.
The companion M1D-Sub (Figure i.2) loudspeaker operates
at a frequency range of 32 Hz to 180 Hz. Designed
specifically to work with the M1D loudspeaker, it extends
overall system power bandwidth and frequency response
down to 32 Hz.
Figure i.2: M1D-Sub ultra-compact subwoofer
INTRODUCTION