Meyer Sound M1D User Manual

M1D Rigging Grids and Accessories
PN: 05.115.001.01 B
Page 8 of 24
Meyer Sound Laboratories Inc.
www.meyersound.com
T: +1 510 486.1166
F: +1 510 486.8356
M1D Rigging Grids and Accessories
PN: 05.115.001.01 B
Page 9 of 24
Meyer Sound Laboratories Inc.
www.meyersound.com
T: +1 510 486.1166
F: +1 510 486.8356
MG-1D GRID IN REVERSED FLOWN CONFIGURATION
“Reversed Flown” dilineates that the MG-1D multipurpose grid is oriented with its integral sliding extension frame to
the front. This conguration is used for applications that require the grid to be tilted more severely upward, causing the
array’s center of gravity to move forward of the farthest forward pick-up hole on the grid’s center bracket. It provides
from -14° to +14° of tilt in 2-degree increments between the grid and the rst loudspeaker when using an M1D as
the rst element of the array. Reversing the MG-1D grid positions its extension frame in front of the array, providing a
forward pick-up point. Further up tilt can be achieved using the extension frame in the extended position.
Install the M1D grid cam as shown into the MG-1D grid. Please note that the grid side of the M1D grid cam faces the
MG-1D grid. Secure all M1D grid cams with the quick release pins (QRPs). Then install the M1D at the predetermined
angle. The M1D grid cam is only used in transition from the MG-1D multipurpose grid to the rst M1D. After this is
complete, use the M1D links with the QRPs to complete the rest of the array as shown.
Maximum Load:
7:1 safety factor: Up to 16 M1Ds or the equivalent
weight of M1Ds and/or M1D-Subs or other products
specied for use with this grid. (496 lbs, 225 kg)
5:1 safety factor: Up to 22 M1Ds or the equivalent
weight of M1Ds and/or M1D-Subs or other products
specied for use with this grid. (682 lbs, 309.2 kg)
CAUTION: When ying an
array from the MG-1D grid,
it must always be supported by
at least one pick-up hole from the
main frame’s center bracket. The
extension frame may be used as
a secondary pick-up location for
tilting the array or spreading the
load between two points.
NOTE: If the rst element
of the array is an M1D-
Sub, the M1D grid cam needs
to be reversed (grid side facing
the M1D-Sub). In this case, up
tilt from 0° to +14° in 2-degree
increments is possible. Use M1D
links to complete the rest of the
array.
WARNING: The leveling feet must always be detached from the MG-1D multipurpose grid before ying
a system. Unscrew the entire assembly, including the threaded leg, and remove completely.

Meyer Sound M1D Specifications

Acoustical

operating frequency range	32 Hz - 180 Hz
frequency response	35 Hz - 160 Hz ±4 dB
phase response	50 Hz - 120 Hz ±45°
maximum peak SPL	130 dB
dynamic range	>110 dB

Coverage

horizontal coverage	360°
vertical coverage	Varies, depending on array length and configuration

Transducers

low frequency transducer	Two 10" cone drivers with neodymium magnets
nominal impedance	4 Ω
voice coil size	2"
power-handling capability	400 W (AES)

Audio Input

input type	Differential, electronically balanced
maximum common mode range	±15 V DC
input impedance	10 kΩ differential between pins 2 and 3

Amplifiers

amplifier type	Two-channel complementary MOSFET output stages (class AB/bridged)
output power	450 W total
THD, IM, TIM	<.02 %
load capacity	4 Ω each channel

AC Power

safety agency rated operating range	100 - 240 V AC; 50/60 Hz
idle current	0.41 A rms (115 V AC); 0.33 A rms (230 V AC); 0.42 A rms (100 V AC)
max long-term continuous current (>10 sec)	3.2 A rms (115 V AC); 1.6 A rms (230 V AC); 3.7 A rms (100 V AC)
burst current (<1 sec)	5.0 A rms (115 V AC); 2.5 A rms (230 V AC); 5.8 A rms (100 V AC)
ultimate short-term peak current draw	17 A pk (115 V AC); 8.5 A pk (230 V AC); 20 A pk (100 V AC)
inrush current	15 A pk (115 V AC); 13 A pk (230 V AC); 15 A pk (100 V AC)

Weight and Dimensions

width	22.62" (575 mm)
height	13" (330 mm)
depth	17.50" (445 mm)
weight	70 lbs (31.75 kg)