Meyer Sound Portable Speaker MILO 120 User Manual

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  
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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.  
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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  
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   
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 VEAMall-in-one  
connector (integrates AC, audio and network)  
10 kdifferential between pins 2 and 3  
Pin 1: Chassis/earth through 220 k, 1000 pF, 15 V clamp network  
to provide virtual ground lift at audiofrequencies  
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 inorder 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 low and low-mid, 8 mid, 6 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 ofamplifiers to operator’s host computer.  
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