DATASHEET
M SERIES
M1D™ : Ultra-Compact Curvilinear Array Loudspeaker
5.07
[129 mm]
7.12
[181 mm]
4.50
[114 mm]
8.50
[216 mm]
23.04
[585 mm]
Dimensions 23.04" W x 7.12" H x 8.50" D
(585 mm x 181 mm x 216 mm)
Weight 31 lbs (14.06 kg); shipping: 35 lbs (15.88 kg)
Enclosure Multi-ply hardwood
Finish Black textured
Protective Grille Powder-coated hex stamped steel
®
Rigging QuickFly MRF-1D rigging frame
The Meyer Sound M1D ultra-compact
curvilinear array loudspeaker brings the
singular advantages of self-powered line
arrays to sound reinforcement applications
in small and mid-sized venues. The excep-
tionally compact enclosure enables sound
designers to achieve high output, precise
pattern control with very low distortion
from a lightweight and unobtrusive sys-
tem. The M1D provides a substantial peak
SPL of 125 dB at 1 meter with an operat-
ing frequency range of 60 Hz - 18 kHz and
is designed specifically for implementing
vertical curvilinear arrays of up to 16 cabi-
nets having 0- to 8-degree splay between
adjacent units. This design affords the
flexibility to tailor vertical coverage by
varying the number and splay of cabinets
in the array while maintaining a consistent
100° horizontal coverage.
crossover design similar to that pioneered
The M1D’s vented, trapezoidal cabinet is
constructed from multiply hardwood and
has a textured hard shell finish. The M1D
incorporates QuickFly rigging as stan-
dard, and utilizes connecting links that are
secured to the steel and aluminum rigging
end frames by quick release pins. An inge-
nious arrangement of rigging holes allows
quick and easy adjustment of cabinet splay
for maximum freedom in customizing verti-
cal coverage. The optional QuickFly MG-1D
multipurpose grid allows either flying or
ground stacking various combinations of
M1D and M1D-Sub. Up to 16 M1Ds (or the
equivalent weight of M1D and M1D-Sub)
with a 7:1 safety factor may be flown, or
up to eight M1Ds or four M1D-Subs may be
ground stacked. For flying only, the simpler
optional MTG-1D will support up to 16 M1Ds
(or the equivalent weight of M1D and M1D-
Sub) with a 7:1 safety factor.
in Meyer Sound’s UPM loudspeakers. At the
lowest frequencies, both 5-inch drivers
combine to reproduce powerful, coher-
ent bass. In the mid frequencies, however,
the crossover feeds the signal to only one
driver; this technique eliminates interfer-
ence between the two drivers (that would
otherwise occur at shorter wavelengths) in
order to maintain optimal polar and fre-
quency response characteristics. The three
vertically aligned dome drivers act as a
small line array, focusing the sound into
a tight vertical coverage pattern while the
constant-directivity horn maintains broad
horizontal coverage.
The bi-amplified M1D incorporates
a
complementary MOSFET power amplifier
module with 500 watts total burst capa-
bility, together with active crossover and
optimized frequency and phase response
correction circuitry. AC power is switchable
in the range of 90 to 264 V AC, at 50 or 60
Hz. Integral peak and rms limiters protect
the loudspeaker components from over-
excursion and over-heating.
The M1D loudspeaker system comprises
two 5-inch cone drivers and three 0.75-
inch high-frequency metal dome tweeters
with neodymium magnets. To assure the
smoothest response in the critical mid-
range, the M1D incorporates a complex
M1D comes equipped with Meyer Sound’s
RMS™ remote monitoring system as stan-
dard. RMS allows the full range of oper-
ating parameters to be monitored over a
network using a Windows® computer.
features & benefits
applications
Extremely compact and lightweight; forms
virtually “invisible” PAs
Unique crossover design eliminates mid-
range combing
Compact voice reinforcement systems
Theatrical sound reinforcement
Very flat response for exceptional accuracy
and imaging
Seamless integration with other M Series
models
Portable and installed audio-visual
systems
Constant-Q horn assures uniform coverage
Front and under-balcony fill
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