Meyer Sound M1D Datasheet

integrated and self-powered system, the
M1D-Sub also incorporates a two-channel
class AB/bridged complementary MOSFET
amplifier with 450 watts total burst capabil-
ity. An Intelligent AC power supply selects
the correct operating voltage in the range
of 90 to 264 V AC at 50 or 60 Hz, allowing
international use without manually setting
voltage switches. The Intelligent AC sup-
ply also performs protective functions to
compensate for hostile conditions on the
AC mains. These functions protect both the
loudspeaker and electronics from erratic
AC conditions and increase the lifespan of
the loudspeaker. An ultra-low-noise fan
is fitted, but cooling is primarily provided
by a massive external extruded aluminum
heat sink.
The vented M1D-Sub cabinet is constructed
of multi-ply hardwood with a durable finish
suited to touring or installed use. A metal
grille protects the drivers.
The M1D-Sub ultra-compact subwoofer
complements the M1D ultra-compact cur-
vilinear array loudspeaker by extending
bandwidth with its operating frequency
range of 32 Hz to 180 Hz and substan-
tially increasing overall system headroom.
Because it produces a prodigious peak SPL
of 130 dB at 1 meter from a compact cabi-
net, the M1D-Sub allows system designers
to minimize array size while maximizing
system response. A variety of QuickFly
rigging options allows the M1D-Sub to be
flown above, below or within an array, or
placed at the base of a ground-stacked
array. Although it is intended primarily as a
companion subwoofer to the M1D, it is per-
fectly suited to general use where powerful
low frequency augmentation is desired.
M1D-Sub contains two robust 10-inch
cone drivers, each featuring a 2-inch voice
coil and a lightweight neodymium magnet
structure. Power rating per driver is 400
AES watts (see note 5 on back page). A fully
Extremely compact and lightweight
High power-to-size ratio for maximum
installation flexibility
Exceptional fidelity and peak capability
assure clean, high-impact lows
features & benefits
QuickFly rigging system simplifies
use in flown or ground-stacked arrays
Seamless integration with M1D
loudspeakers
M1D™-SUB : Ultra-Compact Subwoofer
DATASHEET
Dimensions
Weight
Enclosure
Finish
Protective Grille
Rigging
M1D-Sub features Meyer Sound’s QuickFly
rigging system with rugged, reliable and
deceptively simple components. All load
stresses are transmitted through the rig-
ging frames and associated hardware, not
through the wooden cabinets. 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 8 M1Ds or 4 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.
The M1D-Sub includes Meyer Sound’s RMS™
monitoring system as standard. RMS allows
the full range of operating parameters to
be monitored in real time, remotely over a
network using a Windows
®
computer.
applications
Theatrical sound reinforcement
Houses of worship
Portable and installed audio-visual
systems
Surround playback systems
M SER IE S
22.62" W x 13.00" H x 17.50" D
(575 mm x 330 mm x 445 mm)
70 lbs (31.75 kg); shipping: 75 lbs (34.02 kg)
Multi-ply hardwood
Black textured
Powder-coated hex stamped steel
QuickFly
®
MRF-1D-Sub rigging frame
17.50
[445 mm]
22.62
[575 mm]
8.50
[216 mm]
6.50
[165 mm]
13.00
[330 mm]
11.06
[281 mm]

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)