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Introduction

The console features several main areas:
  • Input channels
  • Telecommunications channel
  • Studio monitoring and command assignment
  • Pre-fade listen (CUE)
  • Level meters
Various audio sources (microphones, computers, audio interfaces, links, phone lines, etc.) enter the console through the input channels, which amplify them. The console mixes all signals to generate two main outputs:
  • PGM: Signal sent to the audio processor and then to the transmitter or streaming.
  • REC: Independent or auxiliary recording signal.
These outputs do not have a “MASTER” or overall level control. The operator controls each signal’s level using the main faders.
Using the assignment buttons (PGM / REC), signals are routed to their corresponding outputs. The CUE buttons allow listening to these signals before sending them on-air.
  • Line channels go on-air when opening the fader.
  • Microphone channels additionally require pressing the MASTER MIC button.
  • The BAL-1 and BAL-2 line channels feature dual inputs (balanced and unbalanced), selectable from the front panel.

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Microphone Inputs

  • DX816: features 3 faders and 5 microphone inputs. MIC-2 and MIC-3 inputs include a second connector that shares a preamplifier. This allows channels 2 and 3 to handle two microphones simultaneously, supporting up to 5 microphones.
  • DX822: features 6 faders and 10 microphone inputs. MIC-2/2b, MIC-3/3b, MIC-5/5b, and MIC-6/6b inputs are dual. This allows channels 2, 3, 5, and 6 to handle two microphones simultaneously, supporting a total of 10 microphones.
It is recommended that microphones on shared inputs be of the same brand and model to maintain signal uniformity.
  • All microphone inputs support 48V phantom power with group switching.
  • In DX816, the equalization is global for all microphones.
  • In DX822, a second equalizer acts on MIC-4, MIC-5, and MIC-6 (and their shared inputs).
The compression affects only the microphone channels. Its action depends on the program level. The gain reduction indicator shows the compressor’s work.
If two microphones share a channel, the compressor balances their levels, smoothing differences due to proximity or voice intensity.
Dynamic microphones are designed to handle 48V phantom, so they can be mixed with condenser microphones without risk.

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Line Inputs and Digital Modules

  • BAL-1 and BAL-2 channels handle balanced and unbalanced auxiliary inputs, selectable from the front panel.
  • The USB modules manage two stereo signals via USB.
  • The USB connection sends PGM (USB-1) and REC (USB-2) signals to the computer.
  • In models with AoIP option, up to two Ethernet modules can be installed for streaming transmission/reception.
    • Available signals: PGM and REC.
    • Each AoIP module also receives a streaming signal, which is assigned to a line channel.

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Indicators

The console’s meter bridge includes:
  • LED VU meters for program and record (peak-average level).
  • Microphone compressor indicator.