Meyer Sound M1D User Manual

M1D Rigging Grids and Accessories
PN: 05.115.001.01 B
Page 10 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 11 of 24
Meyer Sound Laboratories Inc.
www.meyersound.com
T: +1 510 486.1166
F: +1 510 486.8356
MG-1D GRID IN REVERSED GROUND STACKED CONFIGURATION
This conguration is used for ground stacking a predominantly down or forward tilted 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. For tall arrays with severe down or forward tilt, the grid’s extension frame can be
deployed to provide a larger footprint towards the front for improved stability.
Install the M1D grid cam as shown into the MG-1D multipurpose grid. Please note that the grid side of the M1D grid
cam faces the MG-1D. Secure all M1D grid cams with the quick release pins (QRPs). Then install the M1D at the
pre-determined angle. The M1D grid cam is only used in transition from the MG-1D 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.
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, down
tilt from 0° to -14° in 2-degree
increments is possible. Use M1D
links to complete the rest of the
array.
CAUTION: When ground stacking an M1D/M1D-Sub array on an MG-1D grid, always keep the center
of gravity within the footprint of the leveling feet. For extra stability, the footprint can be enlarged by
use of the extension frame. To further secure larger arrays, particularly in outdoor situations, use a tie down or
weight on the grid or a safety system on 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)