Galileo 616 Loudspeaker Management Processor
Back Panel
Galileo 616’s audio I/O features six analog inputs on balanced
XLR connectors feeding state-of-the-art A/D converters operating at 24-bit
resolution, 96 kHz sample rate. Three of the inputs can be individually
switched to operate as standard stereo AES/EBU digital audio inputs, accepting
signals at sample rates up to 96 kHz. Since all internal processing is
performed at 96 kHz, 32-bit vector floating point, any signals entering
at lower sample rates are upsampled using state-of-the-art hardware sample
rate converters. The six input channels can consist of a combination of
analog and digital inputs.
The 16 outputs feature high-resolution 96 kHz, 24-bit D/A converters,
and offer the same robust line driving capabilities as those of Meyer
Sound’s analog line driver products, up to +26 dBu, allowing the
Galileo 616 to easily drive Meyer Sound self-powered loudspeakers to full
output at all frequencies, even over long lines.
Communications
The digital world is about networking devices together. Galileo 616 provides
exceptional capabilities in this regard. Its Ethernet connection allows
Galileo 616 to be remotely controlled from a computer or wireless tablet
running Meyer Sound Compass control software under either the Macintosh
or Windows operating system. Full bidirectional communication ensures
that the user is always viewing current settings, whether operating the
unit remotely or from the front panel.
SIM 3 Integration
The rear panel also includes a direct connection to Meyer Sound’s
SIM 3 audio analyzer which allows Galileo 616 to act as a line switcher
for the analyzer. This means that users can measure across any selection
of Galileo 616’s inputs and outputs without any patching beyond
a single cable connection to the analyzer, providing maximal flexibility
with no extra setup.
The Galileo 616 is designed to afford a broad upgrade path for future
interfacing options, which can include popular existing or future digital
audio networking protocols.
Front Panel Control
In addition to its remote control capabilities, Galileo 616 features
a comprehensive and intuitive set of front panel controls and an LCD screen,
allowing it to be operated without the use of a computer. Crucial information
is available at a glance and hardware controls make quick adjustments
easy.
A carefully-crafted user interface gives Galileo 616 the quick, intuitive
operation required for live use. Each input sports a 26-segment LED ladder
meter, plus mute and select buttons/indicators, while each output has
a bi-color level LED and mute and select buttons. Three high-resolution
encoder knobs are used to make parameter adjustments, which are shown
on the 128x64 pixel liquid crystal display.
Galileo 616 Loudspeaker Management Processor Front
Panel
Powerful DSP Architecture
Galileo 616 is built around a monolithic, 1 GHz vector DSP architecture
employing a direct DMA audio path to maximize processing power and guarantee
fixed low-latency performance, no matter how much processing is applied.
High-quality algorithms at 96 kHz sampling rate, 32-bit floating-point
resolution are used to implement a large assortment of processing. Even
when applying all available processing to every channel, Galileo 616’s
DSP engine retains substantial processing headroom. This design demonstrates
how Meyer Sound looks towards the future as much as to the present.
Galileo 616 Signal Flowchart
Real-World Protection
Meyer Sound knows that sound reinforcement requires expecting the unexpected.
Galileo 616 offers protection against inadvertent changes that can result
in serious problems. The AC power switch is software-activated, so that
accidental button-pushes cannot turn off the unit’s power. A locking
PowerCon AC connector ensures the power cable cannot be yanked out by
an errant foot. And user-programmable lockout of all front panel controls
offers four levels of protection to keep curious fingers from changing
things best left untouched.
