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Introduction

Several main areas can be distinguished on the console:
  • Input channels
  • Telecommunications channel
  • Studio monitoring and talkback assignment
  • Preview listening (CUE)
  • Level meters
Different audio sources (microphones, computers, audio interfaces, links, telephone 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
The operator controls the level of each signal with the main faders.
Using the assignment buttons (PGM / REC), signals are routed to the corresponding outputs. The CUE buttons allow previewing these signals before putting them on air.
  • Line channels are sent on-air by opening the fader
  • Microphone channels also require pressing the MASTER MIC button
  • BAL-1 and BAL-2 line channels feature dual input (balanced and unbalanced), selectable from the front panel

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Microphone Inputs

  • DX816: features 3 microphone faders, but MIC-2 and MIC-3 inputs include a second connector (MIC-2b and MIC-3b) sharing the same preamp. This way, channels 2 and 3 can handle two microphones simultaneously, allowing up to 5 microphones.
  • DX822: the same applies to MIC-4 and MIC-5 channels (with twin inputs MIC-4b and MIC-5b). It allows a total of 10 microphones on 6 faders.
It is recommended that microphones on twin inputs are of the same brand and model to maintain signal uniformity.
  • All microphone inputs support switchable 48V phantom power in groups
  • On DX816, equalization is global for all microphones
  • On DX822, a second equalizer acts on MIC-4, MIC-5 and MIC-6 (and their twin inputs)
Compression affects only 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 matches their levels, smoothing differences due to proximity or voice intensity.
Dynamic microphones are designed to handle 48V phantom power, 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 auxiliary unbalanced inputs, selectable from the front panel
  • 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 stream, which is assigned to a line channel

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Indicators

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