XTA apa-4e8, Руководство оператора

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Page 22 APA-4E8 Operator’s Manual
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Pre-Matrix Processing
APA’s processing is conveniently split between input signal conditioning before it reaches the
full mix matrix, and output/loudspeaker specific processing dedicated to each of the four
power amplifier channels.
With this in mind, the pre-matrix processing has been designed to offer as much flexibility as
possible, as it may be used for network audio processing that does not involve the local power
amplifier at all. For example — the amplifier may be configured to run a 4-way system, as one
half of a stereo set-up. This would mean that three of the four available input processing
paths would remain unused. This need not be the case of course, as they can be utilised to
process incoming audio from another source, and output this on the network.
The diagram below illustrates this example.
In this example, analogue input A is feeding all four post-matrix processing channels (to the
local power amplifiers) with analogue input B being processed but not connected to any
further local processing, instead being fed back out onto the network for use elsewhere.
Similarly, AES input stream C&D is picked up and processed before being sent back out onto
the network.