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Application Guide - 10
Design Worksheet, EdgeMax EM180 & Mixed EM90/EM180 Systems
Design Worksheet
EdgeMax EM180 & Mixed EM90/EM180 Systems
This design worksheet covers the basic steps for the creation of a system design comprised of
EdgeMax EM180 in commercial audio/business music systems. EdgeMax EM180 loudspeakers
are ideally suited for background/foreground music applications with mounting heights
between 2.4 to 6.1 m (8 to 20’).
EdgeMax loudspeakers utilize a two-way design comprised of a compression driver mounted
in a proprietary PhaseGuide to deliver asymmetrical high frequency coverage, and an
8-inch driver mounted in a tuned, ported enclosure. EdgeMax loudspeakers are compatible
with 70/100V and low-impedance amplifiers, and can deliver up to 98 dBSPL in a typical
application with a 4.9m (16’) ceiling height.
The design process described within this document uses three key requirements for the
creation of the design, these are:
1. Loudness: What sound pressure level is required for this application?
2. Coverage: How consistent must the sound be across the entire coverage area?
3. Response: What bandwidth is required for the type of program material that will be used?
Each of these requirements can be easily converted into a specification that we can use
to create our system design. If we understand the customer’s needs in these three areas,
we can deliver a design that will, at a minimum, meet their needs, and at best, exceed their
expectations. For the purposes of this design guide, we will assume that you are familiar with
the system requirements for typical business music systems and are ready to focus on the
creation of a speaker layout using EdgeMax loudspeakers.
Design Guidelines
EdgeMax loudspeakers provide asymmetrical vertical coverage, and either 90 or 180-degree
horizontal coverage. The design guidelines presented here oer two coverage quality options
– Premium and Standard.
EM180
Product Specifications
Frequency Range: 50 Hz – 18 kHz ± 3 dB
Long Term Power Handling: 125 watts continuous
Sensitivity: 93 dBSPL @ 1 W/1 m (pink noise)
Impedance: 70/100V or 8
Maximum Acoustic Output: 114 dB-SPL @ 1 m (pink noise)
Dispersion: 180° x 75° (H x V)
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