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GMIX - Mixers

(Modular Digital Audio Mixers)


GMIX - Mixers

GMIX Modular Digital Audio Mixers
  • The control signals are transmitted via IP
  • The CAT5 cable will be connected to a LAN switch of SERIX
  • The AES/EBU cable will be connected to IDEA matrix
  • The KBOX has four integrated GPIO


GMIX - Mixers

The GMIX is a modern, modular audio mixer concept that offers comfortable, easy to operate control surfaces to manage a lot of sophisticated functions. The mixer surface consists of individual modules that can be installed into the console at the places that best suit the operational and ergonomic requirements of the individual customers:

Fader modules with or without motors, the central module with the antenna, aux, intercom and monitoring controls, the main module with the 6.5” TFT screen used to set up the mixer configurations, filter parameters, etc., and the information module with 10.5" screen to display the levels, timers, ON AIR state, etc.

A larger external display placed besides the mixer can be used instead of the information module to indicate the output levels and other parameters the customer would like to have displayed. Additional modules, e.g. larger keyboards for audio monitoring, telephone modules to remotely control a telephone screener system, etc, are available.

The lay-out of the surfaces and the mixer functions can be adapted to the customer’s individual requirements.

The console remotely controls the switching circuitry and the DSPs installed in the matrix.

Master Modules:


  • selection keys (compressor, on-air management, timer, WAV recorder)
  • LED for on-air
  • LED for overload
  • 8 character display for function indication


  • selection keys (compressor, WAV record)
  • dB meter
  • overload LED
  • 8 character display for function indication
  • knob for gain adjustment
  • talk key
  • output enable key


  • selection keys (input or output lines)
  • 8 character display for function indication
  • knobs for gain (main monitor, PFL monitor, phones monitor)
  • 8 freely programmable keys (input or output line)
  • 3 free keys (phase, mono, PFL off, split PFL, etc.)


  • selection keys (out lines)
  • 8 character display for function indication
  • knob for gain adjustment
  • 8 freely programmable keys (output line)
  • talk key
  • intercom group
  • communications group
  • answer key
  • red light


  • four user-programmable 8 character displays
  • 8 user-programmable keys all displays and keys can be controlled by GPIO functions
  • Fader Modules
  • Rotary knobs with push button function for gain, balance, width, return gain, mic level, line input gain, aux level, etc.
  • High quality faders (usually with motor)
  • 8 character display for object title or name
  • 8 character display for function indication
  • LEDs for compressor level indication (input or output)
  • LED level meter (Input or Output)
  • LED for overload
  • LED for active processing
  • LED to indicate parameter adjustment
  • 5 free function keys (ON, PFL, talk, external, n-m, record...)

Other available modules: Info Module, Telephone Module.

Main features:

Some examples for the functions realised on the main module are:

Entering the password either by selecting it from the system memory by using the rotary knobs, or by keying it on the decimal keyboard of the central module

Allocation of the input signals to the faders by means of the three rotary knobs that select the lines in three hierarchical tables. It is also possible to dial the line number on the decimal keyboard of the central module. Using the function keys, it is possible to choose whether the left or the right channel should be connected, whether in mono or stereo, and whether the return line is to be configured in (n-1)

Allocation of the fader outputs to the various output lines similar to the inputs as described above

Adjustment of the filters by means of the rotary knobs. The operator can choose two different operator levels manually (a default level can already be selected with the login): basic and advanced with graphic display of the filter curves

Adjustment of the compressors, also with two operation levels

Possibility to select the sequence of fader - filter - compression

Possibility to select the Aux tapping point

One keystroke sets all filters and compressors to zero, another one sets individual filters to zero

Saving and recalling the configuration of individual channels or of the complete mixer, of the input and output configurations, of the filter and compressor adjustments

Transfer of a channel configuration to another mixer

Allocation of the channel configuration received from another mixer to one of the own fader channels

Remote setting of a fader channel of another mixer

Recall of the “Help” text that also offers the possibility to create hyper texts. The texts themselves can be written by the customers

By pressing the SEL key of a fader, the display of the main module shows the parameters of this fader channel

After pressing the TIMER key on the main module, the starting time for the downcounter can be introduced by a rotary knob on the main module or by the decimal keyboard of the central module. The function keys on the main module determine whether the timer shall count upwards, downwards or downwards to a determined time

When another fader of the same group is pulled, the timer starts anew

Avaible Download(s):

Data Sheet

(MD5: 27DA7AF2F359EDDC2208FF7606C507BF)

Mandozzi Elettronica