Meyer Sound Portable Speaker M1DTM User Manual

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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