
BEL DIGITAL AUDIO
BMA2-4SHD
Introduction
2006 BEL (Digital Audio) Ltd
1
Version 0.8
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The BMA2-4SHD is a professional audio monitor/ alarm system housed in a 2U rack.
The unit features two speakers and an analogue line output. Audio input signals can be in
the form of analog, AES (SPDIF) and SDI embedded data. The BMA2-4SHD accepts audio
inputs in groups of 4 channels from the selected source and can direct any two from these to
the speakers. De-embedded audio can be selected from either an SD input or an HD input.
Alarms can be set to monitor audio-over-level, audio-loss and sustained anti-phase.
Main features
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1 x SD and 1 x HD video inputs
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Auto PAL/NTSC detection
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Handles SDI embedded (groups 1 – 4), 2 x AES or 2 x analog audio input pairs
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Option for balanced XLR or unbalanced BNC digital audio I/O
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High-quality, high SPL audio reproduction with soft limiting
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4 x tri-color bargraphs with six standard scales and ballistics, adjustable color
transition points and peak-hold facility
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Alarms for audio loss, over-level and sustained anti-phase
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Line level analog audio output of sources directed to loudspeakers
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Headphone connector with speaker mute
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Individually user-calibrated audio level inputs/outputs and metering
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Windows GUI and separate RS232 protocol for remote control of all alarm functions
and audio/video switching
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TTL port for alarms reset and remote alarms indication