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 FORWARD FLOWN CONFIGURATION
“Forward Flown” dilineates that the MG-1D multipurpose grid is oriented with its integral sliding extension frame to the
rear. This is the most common conguration for ying an M1D and/or M1D-Sub array. 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. If more tilt is required, the grid may also be tilted up or down by using single or multiple rigging points. If further
down tilt is needed, this can be achieved using the grid’s extension frame in the extended position.
Install the M1D grid cam as shown into the MG-1D grid, with the grid side of the M1D grid cam facing the MG-1D
grid. Secure all M1D grid cams with the quick release pins (QRPs), then install the M1D at the predetermined angle
(see page 5 for more information on setting tilt angles). The M1D grid cam is only used in transition from the MG-1D
multipurpose grid to the rst M1D/M1D-Sub. After this is complete, use the M1D links with the QRPs to complete the
rest of the array as shown.
CAUTION: When ying an array
from the MG-1D multipurpose 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.
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.
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)
NOTE: If the rst element of the
array is an M1D-Sub, the M1D grid
cam needs to be reversed (grid side facing
the Sub). In this case, up tilt from 0° to
+14° increments is possible. Use M1D links
to complete the rest of the array.

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)