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CHAPTER 1: INTRODUCTION
CAL is available in three models, each providing a different
output level — up to a maximum peak SPL of 106 dB at
90 meters with CAL 96 — over an operating frequency range
of 100 Hz to 16 kHz. Providing a horizontal coverage of
120 degrees, as well as the flexibility of vertical beam steer-
ing, a single unobtrusive CAL delivers clear vocal reproduc-
tion over a large area while minimizing undesirable
reflections.
Discrete onboard Class D amplifier channels, processed by
sophisticated algorithms, power each driver and tweeter. The
amplitude and phase responses of each driver are engi-
neered to produce interactions that yield the desired vertical
spread. Controlling each element individually yields greater
flexibility and precision than other beam steering systems
that control modules comprised of multiple drivers.
The accuracy of CAL's vertical steering allows system
designers to pinpoint coverage, even when mounting options
in a venue do not allow for physically aiming a loudspeaker
toward a coverage area. CAL 96 and CAL 64 include beam
splits that can be configured to fit the application, for exam-
ple, to avoid hitting a reflective balcony surface. To meet the
high intelligibility requirement for vocal reproduction, CAL has
been engineered to maintain accurate beam steering up to
10 kHz, well beyond the benchmark of 4 kHz used in tradi-
tional single-driver loudspeakers.
CAL loudspeakers include two AVB-enabled Ethernet ports
for receiving AVB audio streams as source signals. The ports
also provide computer control of CAL via Meyer Sound's
Compass
®
control software, allowing beam control and
RMS™ real-time monitoring of each loudspeaker on the net-
work.
CAL comes standard with adjustable mounting brackets for
installation on walls or columns. The low-profile aluminum
enclosure is available in white, black, and custom colors,
allowing it to blend easily into any background. Weather pro-
tection permits outdoor installations in most environments.
10
CAL INSTALLATION OVERVIEW
Below is a basic overview for installing and using the CAL
loudspeaker. It is recommended that you read the remainder
of this document in its entirety before proceeding.
1. Use CAL's included mounting brackets to mount the
loudspeaker on a wall or column. For more information,
see Chapter 6, "Mounting CAL Loudspeakers."
2. Remove CAL's user panel cover. For more information,
see "User Panel Cover" on page 19.
3. Connect CAL to an appropriate power source with the
included power cable. For power requirements, see
Chapter 2, "Power Requirements."
4. Connect an audio source to one of CAL's three analog
balanced audio inputs, to its AES/EBU digital input, or to
one of its two Network / AVB ports. For more informa-
tion, see "Audio Input" on page 15.
TIP:
You can connect a second audio source to
one of the audio inputs to be used as an over-
ride signal.
5. Connect to CAL's logic I/O ports any external devices
you want to use for muting and overriding audio sources,
detecting loudspeaker faults, and changing presets. For
more information, see "Logic I/O Ports" on page 17.
6. Connect CAL to your computer's Ethernet port or to a
network router or network switch using a CAT-5e cable.
For more information, see "Network / AVB Ports" on
page 19.
7. Install the Compass control software and any supporting
software. For installation details, refer to the Compass
documentation included with CAL (also available at
www.meyersound.com).
8. Launch the Compass control software and configure
CAL's audio inputs, vertical beam spread, vertical beam
angle, and processing. For more information, refer to the
Compass documentation included with CAL (also avail-
able at www.meyersound.com).
9. Reattach CAL's user panel cover. For more information,
see "User Panel Cover" on page 19.
CAUTION:
When installing CAL outdoors, the
user panel cover should always be attached to
protect the user panel connectors from the weather
elements.
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