DATASHEET
M SERIES
MILO 120 : High-Power Extended Coverage
Curvilinear Array Loudspeaker
Flown and ground-stacked MILO 120 arrays
and combined arrays with other M Series
(MILO/M3D/M3D-Subs) models are easy to
deploy using QuickFly components. Custom
front and rear AlignaLinks at the cabi-
net corners couple the units for flying or
stacking, and allow from 13 to 19 degrees
of cabinet splay adjustable in two-degree
increments. Because rigging connections
are rigid, the array tilt is easy to adjust
– often eliminating the need for a pullback
strap in flown configurations.
A variation on the popular MILO™ high-
power curvilinear loudspeaker, the MILO
120 high-power expanded coverage curvi-
linear array loudspeaker excels where wide
horizontal and increased vertical coverage
are needed.
MILO 120 produces a peak output of 138
dB SPL with exceptionally flat phase and
frequency response. Its wide operating
frequency range (60 Hz to 18 kHz) is com-
plemented by extended high-frequency
headroom and a dedicated very-high fre-
quency section (4.2 kHz to 18 kHz) that
renders delicate transient information with
detailed resolution through its wide cover-
age pattern. The MILO 120 loudspeaker’s
acoustical characteristics are designed to
facilitate seamless integration when used
with other MILO curvilinear elements.
The self-powered MILO 120 is a compact,
lightweight four-way system that pro-
vides 120 degrees of horizontal and 20
degrees of vertical coverage. The MILO 120
expanded coverage pattern is optimized for
medium to near field applications, making it
the perfect downfill complement for stan-
dard MILO or M3D line array loudspeaker
systems. MILO 120 can also be used to
form wide coverage arrays or in other fill
applications that can be satisfied by one or
two cabinets.
A combined MILO/MILO 120 array with M3D-
Subs affords precise low-frequency direc-
tional control that has won widespread
acclaim for M3D systems. The M3D-Sub
provides a well-controlled coverage pattern
to 30 Hz, assuring that very low-frequency
energy does not spill onto the stage or
cause excessive reverberation. In applica-
tions where directional low-frequency con-
trol is not primary, a MILO/MILO 120 array
can be flown adjacent to or ground stacked
with Meyer Sound 700-HP subwoofers. With
significantly more output than other “high-
power” subwoofers, the Meyer Sound 700-
HP sets a new standard for the power-to-
size equation. Its power and bandwidth
handle high continuous operating levels and
extreme transient information with minimal
distortion in its operating frequency range.
The optional MILO 120-I insert (shown
below) can be fitted to enhance the appear-
ance of arrays which include the MILO 120,
and also provide acoustical benefits that
allow MILO and MILO 120 cabinets in the
same array to be fed with identical signals,
with no additional equalization.
As part of the M Series, the MILO 120
loudspeaker comes standard with Meyer
Sound’s RMS™ remote monitoring system.
The MILO 120 shares the same dimensions
as the standard MILO cabinet to facilitate
seamless integration with MILO and exist-
ing MILO QuickFly® rigging accessories,
like the MG-3D/M multipurpose grid and
MCF-MILO caster frame. The flexibility of
MILO 120 also allows it to be configured
with other Meyer Sound loudspeakers in
complex systems.
features & benefits
applications
Extreme coverage angles of 120 degrees
(horizontal) and 20 degrees (vertical)
Optional MILO 120-I insert enhances
appearance of arrays and provides
acoustical benefits
Stadiums, arenas, concert halls and
theatres
Exceptional fidelity and peak capability
assure clean, high-impact response
Touring sound reinforcement
Large-scale events
QuickFly rigging system simplifies use in
flown or ground-stacked arrays
Seamless integration with other M Series
models
MILO 120 Vertical Splay and Coverage
These illustrations show how the splay between adjacent
cabinets in a MILO/MILO 120 array may be adjusted to
tailor coverage for a specific venue. The MAPP Online
plots illustrate the vertical directivity characteristics of
this example array, with a section view of the venue
superimposed.
The top six cabinets (MILO) are splayed at small angles to
throw farther through coupling and cover the back of the
venue. The bottom two cabinets (MILO 120) are splayed at
wider angles to better cover the near field.
LD-3
(10) MILO
(10) MILO
����
����
Channel A
SUB OUT
IN
CH 1 OUT
CH 2 OUT
CH 3 OUT
Channel B
����
�����
IN
SUB OUT
CH 1 OUT
CH 2 OUT
CH 3 OUT
Channel A
INSERTS
���������
SENDS
����
IN SUB
OUT
Full Range
IN CH 1
IN CH 2
IN CH 3
OUT
Post Array
OUT
Post Array
Post HPF
Channel B
INSERTS
SENDS
IN SUB
OUT
Full Range
IN CH 1
IN CH 2
IN CH 3
OUT
Post Array
OUT
Post Array
(2) MILO 120
W/ MILO 120-I INSERTS
(OPTIONAL)
(2) MILO 120
W/ MILO 120-I INSERTS
(OPTIONAL)
Post HPF
Digital Delay
(6) 700-HP SUB
(6) 700-HP SUB
Digital Delay/EQ
2 In x 6 Out
Signal Flow for a Typical
Integrated Reinforcement System
Because the MILO 120 loudspeaker is compatible with most other Meyer Sound reinforcement loudspeakers, sound designers have maximum
freedom to customize systems for their needs. This block diagram illustrates the signal flow for a typical integrated sound reinforcement
system using 10 MILO cabinets per side for the main arrays, and two MILO 120 loudspeakers used as downfill.
MILO 120 Specifications
Notes:
Acoustical1
1. The low-frequency power response of
the system will increase according to
the length of the array.
2. Recommended maximum operating
frequency range. Response depends
upon loading conditions and room
acoustics.
2
3
Operating Frequency Range
Free Field Frequency Response
60 Hz - 18 kHz
65 Hz - 17.5 kHz ±4 dB
750 Hz - 16 kHz ±30°
138 dB
Phase Response
4
Maximum Peak SPL
Dynamic Range
>110 dB
3. Measured with 1/3 octave frequency
resolution at 4 meters.
Coverage
Horizontal Coverage
Vertical Coverage
120°
4. Measured with music at 1 meter.
5. At these frequencies, the transducers
produce equal sound pressure levels:
560 Hz for the low-mid and mid-high
and 4.2 kHz for the mid-high and
very-high frequency drivers.
6. Power handling is measured under
AES standard conditions: transducer
driven continuously for two hours with
band limited noise signal having a 6 dB
peak-average ratio.
Varies, depending on array length and configuration; 20° for
single loudspeaker
5
Crossover
560 Hz, 4.2 kHz
Transducers
7
Low/Low-Mid Frequency
Two 12" cone drivers with neodymium magnets
Nominal impedance: 4 Ω
Voice coil size: 4"
7. To eliminate interference at short
wavelengths, the two 12-inch
6
Power-handling capability: 1200 W (AES)
drivers work in combination at low
frequencies (60 Hz – 180 Hz). At mid
frequencies (180 Hz – 560 Hz) only one
cone driver is fed from the crossover
to maintain optimal polar and
frequency response characteristics.
8. The three drivers are coupled to a
constant-directivity horn through
a proprietary acoustical combining
manifold (REM).
9. Amplifier wattage rating is based
on the maximum unclipped burst
sine-wave rms voltage the amplifier
will produce in to the nominal load
impedance low, mid and very high
channels 67 V rms (95 V pk) into 4, 6
and 8 ohms.
Mid-High Frequency
One 4" compression driver
Nominal impedance: 8 Ω
Voice coil size: 4"
Diaphragm size: 4"
Exit size: 1.5"
6
Power handling capability: 250 W (AES) on REM
8
Very-High Frequency
Two 2" compression drivers
Nominal impedance: 12 Ω
Voice coil size: 2"
Diaphragm size: 2"
Exit size: 0.75"
6
Power handling capability: 100 W (AES) on REM
Audio Input
10. AC power cabling must be of sufficient
gauge so that under burst current RMS
conditions, cable transmission losses
do not drop voltage below specified
operating range at the speaker.
Type
Maximum Common Mode Range
Connectors
Differential, electronically balanced
±15 V DC, clamped to earth for voltage transient protection
Female XLR input with male XLR loop output or VEAMall-in-one
connector (integrates AC, audio and network)
10 kΩ differential between pins 2 and 3
Pin 1: Chassis/earth through 220 kΩ, 1000 pF, 15 V clamp network
to provide virtual ground lift at audiofrequencies
Pin 2: Signal +
Input Impedance
Wiring
Pin 3: Signal -
Case: Earth ground and chassis
DC Blocking
CMRR
None on input, DC blocked through signal processing
>50 dB, typically 80 dB (50 Hz–500 Hz)
RF Filter
Common mode: 425 kHz
Differential mode: 142 kHz
TIM Filter
Integral to signal processing (<80 kHz)
Nominal Input Sensitivity
0 dBV (1 V rms, 1.4 V pk) continuous is typically the onset of
limiting for noise and music
Input Level
Audio source must be capable of producing a minimum of +20 dBV
(10 V rms, 14 V pk) into 600 Ω inorder to produce maximum peak
SPL over the operating bandwidth of the loudspeaker
Amplifiers
Type
Output Power
Complementary power MOSFET output stages (class AB/H)
3560 W (1125 W x 2 channels, 750 W x 1 channel, 560 W 1 x
Made by Meyer Sound Laboratories
Berkeley, California USA
European Office:
Meyer Sound Lab. GmbH
Carl Zeiss Strasse 13
56751 Polch, Germany
9
channel)
THD, IM, TIM
Load Capacity
Cooling
<.02%
4 Ω low and low-mid, 8 Ω mid, 6 Ω very-high channel
Forced air cooling, four fans (two ultrahigh-speed reserve fans)
AC Power
Connector
Automatic Voltage Selection
Safety Agency Rated Operating Range
Turn-on and Turn-off Points
Current Draw:
250 V AC NEMA L6-20 (twistlock) inlet, IEC 309 male inlet, or VEAM
Automatic, two ranges, each with high-low voltage tap
95 V AC – 125 V AC, 208 V AC - 235 V AC; 50/60 Hz
85 V AC – 134 V AC; 165 V AC - 264 V AC
MILO 120 - 04.142.003.01 A
Copyright ©2004
Meyer Sound Laboratories Inc.
Idle Current
1.1 A rms (115 V AC);0.55 A rms (230 V AC);1.3 A rms (100 V AC)
11.2 A rms (115 V AC);5.6 A rms (230 V AC);12.9 A rms (100 V AC)
14.4 A rms (115 V AC);7.2 A rms (230 V AC);16.6 A rms (100 V AC)
32 A pk (115 V AC);16 A pk (230 V AC);37 A pk (100 V AC)
7 A (115 V AC and 110 V AC); 10 A (230 V AC)
meyer sound laboratories inc.
2832 San Pablo Avenue
Berkeley, CA 94702
Max Long-Term Continuous Current (>10 sec)
10
Burst Current (<1 sec)
Ultimate Short-Term Peak Current Draw
Inrush Current
T: +1 510 486.1166
F: +1 510 486.8356
RMS Network
Equipped for two conductor twisted-pair network, reporting all
operating parameters ofamplifiers to operator’s host computer.
|