Meyer Sound Milo Line Array

The MILO high-power curvilinear array is remarkably compact and lightweight for a self-contained, four-way system — particularly considering that it delivers 140 dB SPL peak output with exceptionally flat phase and frequency response. MILO contains three dedicated very-high frequency transducers that extend its operating range to 18 kHz, increase available high frequency headroom, and result in extraordinary resolution of delicate transients, even in very long throw applications.

MILO is the same width as the M3D-Sub directional subwoofer, though much smaller in other dimensions. This matched width affords seamless configuration of combined MILO/M3D-Sub arrays for extension of low frequency bandwidth and headroom. The combination also exhibits Meyer Sound’s proprietary low-frequency directional control, so bass energy is effectively steered away from areas behind the array.

MILO can serve as the keystone component in scalable, building block systems comprising combinations of M Series products. For example, MILO can be paired with the M3D line array for very large venue applications, or transition to MICA compact high-power curvilinear array loudspeakers for near field coverage where appropriate. The MILO 120 expanded coverage high-power curvinlinear array loudspeaker provides the ideal complement to MILO for downfill applications and shares the same dimensions and QuickFly rigging components as MILO. All M Series products have compatible acoustical and performance characteristics.

ADVANCED M SERIES TECHNOLOGY IN A VERSATILE PACKAGE:
MILO was designed specifically to afford more flexibility in designing high power array systems for medium-to-large venues, while at the same time reducing the time and costs associated with rigging, flying and transportation.

MILO is a four-way design, with the operating frequency range divided into the low frequency band (60 Hz – 300 Hz), the low-mid band (300 Hz – 560 Hz), the mid-high band (560 Hz – 4.2 kHz), and the very-high frequency band (4.2 kHz – 18 kHz).
Low/Low-Mid Frequencies: Power and Definition

In MILO, the low/low-mid frequencies are reproduced by 12-inch cone drivers. In the lowest frequency range, from 60 Hz to about 300 Hz, both drivers are operating in tandem for maximum power, with each driven by a dedicated amplifier channel providing 1125 watts of peak output. These drivers are a new, proprietary design incorporating neodymium magnets for higher efficiency and power handling with reduced weight. In common with all other MILO transducers, the 12-inch drivers are made in a new, state-of-the-art manufacturing facility located at Meyer Sound’s Berkeley headquarters.

In the critical low-mid band, MILO utilizes a complex active crossover design to assure the smoothest possible response. Above 300 Hz, where less power is required, the crossover feeds full signal to only one of the two 12-inch drivers and rolls off the other. This ingenious technique eliminates interference between the drivers that would otherwise occur at shorter wavelengths, enabling MILO to maintain optimal polar and frequency response characteristics throughout the low and low-mid operating ranges.

Essentially, MILO divides the midrange frequencies into two bands (low-mid and mid-high), with a dedicated driver (cone and compression, respectively) assigned to each band. Because only one driver reproduces each frequency band, MILO avoids the difficulties encountered by other line array systems that attempt to reproduce the same midrange frequencies using separate, multiple cone drivers — in some cases, even cross-firing the drivers. Such techniques risk phase problems due to multiple arrivals, and cross-firing can introduce undesirable combing and lobing, even potentially modulating the high frequency signal.

Mid-High to Very-High Frequencies: Greater Output, Lower Distortion:
In their designs for line arrays, most manufacturers recognize that the high frequency vertical pattern of each loudspeaker must be tightly controlled to minimize interference between units in the array. But some common solutions, such as using long waveguides to collimate compression driver output, gain the necessary control only at the cost of increased distortion.
By contrast, MILO employs two patented REM ribbon emulation manifolds for the separate mid-high and very-high frequency sections, each coupled to individual constant-directivity horns. REM is a proprietary coupling device that introduces driver output to the horn throat across a very short path (3 inches for the mid-high section and 1.5 inches for the very-high section), effectively controlling the output but with dramatically reduced distortion in comparison to other techniques.

MILO’s mid-high section (560 Hz – 4.2 kHz) employs a single 1.5-inch exit, 4-inch diaphragm compression driver powered by a dedicated 560-watt amplifier channel. The very-high frequency section utilizes three 0.75-inch exit, 2-inch diaphragm compression drivers to produce extraordinary power and clarity, and also extend operating frequency range up to 18 kHz. To provide maximum system headroom, power for the very-high frequency section is supplied by a dedicated 1125-watt amplifier channel.

Because high frequency drivers are critical to overall system performance, all compression drivers in MILO are designed and manufactured in house by Meyer Sound. Rigid manufacturing tolerances and stringent quality control ensure stable, consistent response characteristics.

Two patented REM ribbon emulation manifolds couple the four Meyer Sound compression drivers to the constant directivity horns. REM controls driver output and introduces it to the horn throats within the shortest possible path length, and consequently produces far less distortion than devices in other line arrays that employ longer paths.
Read more about the REM waveguide.

MILO SPECIFICATIONS AND DIMENSIONS

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