Marani DPA-880T, Руководство пользователя

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DPA880 Digital 8x8 Conference System Matrix
User Manual
For the microphone inputs, can be selected a Phantom power Supply.
Described below are the functions of the front panel control buttons for the DPA880.
• Overview
The DPA880 on the front panel offer the possibility to select up to 6 presets, edited and uploaded
on the unit through the Pc Sw, thanks to 6 push buttons.
The Name of the current preset is displayed on a wide 2x24charachters LCD and the main
activities of the unit's channels are shown by 8 rows of 5 leds: Line, Microphone, Feedback,
Signal/Clip, Limiter.
Anyone of the 6 available presets can even be recalled by a remote Wall Panel Control, allowing
also the control of the Master Output Volume.
The Wall Remote Control, acting through a RS485 connection, and the Remote PC control, via
USB, can operate simultaneously.
When not used for the Wall Panel Remote Control, the RS485 connection can be used for the
creation of a DPA880 network of up to 32 units, all controlled by the Ps Sw remote control.
The DPA880 is a powerful Matrix, allowing to select as input, for any of the 8 input independently,
a Line Level Input or a Microphone Input, where for the microphone input there is the possibility
to provide a 48V Phantom Power supply.
When selected a microphone Input, the unit provide the possibility to activate a Feedback
Eliminator based on a powerful “pitch shifting” algorithm, particularly effective for voice
applications.
Each output has as first stage an 8x8 Matrix allowing the mix of the 8 inputs and processing the
final mix with a 5 bands Eq, with filters assignable as Peaker or Hi/Low Shelving, able to range
from -15dB up to +15dB gain; following the 5bands Eq, a Hp and a LP filters up to 24dB/Oct
shape the output channel band's limits; a delay is also available for signal/speakers alignments.
The Dynamic process of each output channel is left to a powerful RMS Compressor, with variable
Ratio and to a final Peak Limiter for the complete output peak control.
Master Input Gain and Master output Level controls are available for the simultaneous level
control of the all inputs and outputs; four Switches, Sw controlled, are available for the On/Off
control of remote devices.