Meyer Sound M1D User Manual

M1D Rigging Grids and Accessories
PN: 05.115.001.01 B
Page 18 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 19 of 24
Meyer Sound Laboratories Inc.
www.meyersound.com
T: +1 510 486.1166
F: +1 510 486.8356
MTG-1D TOP GRID IN REVERSED FLOWN CONFIGURATION
“Reversed Flown” dilineates that the MTG-1D top grid is oriented with its 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 MTG-1D grid positions the grid extension frame in front of the array, providing a forward pick-up
point. Further up tilt can be achieved using the grid’s extension frame in the extended position.
Install the M1D grid cam as shown into the MTG-1D top grid. Please note that the grid side of the M1D grid cam
faces the MTG-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 MTG-1D 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.
Maximum Load:
7:1 safety factor: Up to 16 M1Ds or the equivalent
weight of M1Ds and/or M1D-Subs. (496 lbs, 225 kg)
5:1 safety factor: Up to 22 M1Ds or the equivalent
weight of M1Ds and/or M1D-Subs. (682 lbs, 309.2 kg)
CAUTION: When ying an array
from the MTG-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.

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)