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MC781 multi-functional conference mixer

MC-781 is a microprocessor-controlled , automatic switching of 8 +8 channel intelligent conference mixer. It appeared , to small-scale international conferences , from portable to mobile conferencing application provides a new application solutions.M
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    MC781 multi-functional conference mixer

    MC781 is an 8+8 channel smart conference mixer controlled by micro-processor and automatically switched.

    Its birth offers brand-new application solutions from small-scaled to international conferences and from portable

    to mobile conferencing applications.

    MC781 smart conference mixer is conveniently used for multimedia teaching and conference sound amplification

    with actual requirements of project application taken into account in design. It is completed with 8 Cannon

    balanced microphone and 8 Phoenix wire balanced microphone or line input channels, including 48V phantom

    power supply for condenser microphones and one unbalanced auxiliary line input to connect the external auxiliary

    audio equipment. Gain of each input channel is tuned separately with built-in limiter and any microphone channel is

    set as chairman priority channel based on applications. When the chairman channel speaks, output levels of other

    microphone channels will be attenuated automatically. For each input channel is built with one threshold level control

    circuit inside, proper threshold control value is adjusted based on needed. The channel with signal input is enabled only,

    namely, during the entire conference, the conference participants operate speech microphone on/off and chairman

    priority control without manual adjustment.

    Built-in NOMA function is available for MC781 smart conference mixer, total output level is adjusted in accordance with

    channel number of input signals, namely, when multiple microphones are speaking simultaneously, total system output

    level remains constant, the system output level of the system will not be increased due to superposition of input level

    and the probability of “sound feedback” will be lowered effectively. It is rare in the conventional sound amplification.

    With such a function, under normal sound amplification functions after system commissioning, unnecessary whistling

    trouble is prevented with change of number of microphones, more outstanding and practical in the environment of

    smaller spaces and more microphones.

    MC781 is configured with 15 sets of cascading functions, the number of microphones used can be temporarily

    increased based on operation needs, the scale of conference is increased to up to 120 persons quickly and

    conveniently and the conference mobility is enhanced significantly.

    MC781 smart mixer is used in medium and small-sized conference rooms, lecture halls, VIP reception halls and

    conference centers to manage so many microphones and simplify system operation. The smart envoy ensuring easy,

    efficient and worry-free operation of the conference brings us with human-centered experience with science and technology.


    Performance characteristics:

    8 Cannon balanced inputs, using signals from microphone or line level (with adjustable EQ)

    8 phoenix connector balanced input, using signals from microphone or line level (with adjustable EQ)

    2 channels of 6.35 input (with adjustable EQ)

    2 channels of dual-track music input (with adjustable EQ)

    Each channel of input completed with 48V phantom power supply

    Each channel of input completed with standalone gain and volume control

    Each channel of input completed with adjustable gateway attenuation level

    Each microphone channel completed with compression limiting function

    Each microphone channel is independently switched to priority presetting mode.

    The sound track with signal input only is automatically enabled, the sound gateway action level is adjusted automatically and operation is easy.

    The unique feedback inhibition function is used to adjust input gain and total output gain, in particular to automatic level adjustment based on

    occupation of sound tracks and effective prevention of whistling

    Connected to 15 sets of K781 and management of conferencing system with up to 120 microphones

    Microphones of various grades and characteristics are configured based on actual situations, easy connection and flexible operation


    MC781 multi-functional conference mixer


    Specifications and parameters:

    Input impedance: MIC 4300Ω, AUX 50KΩ

    Output impedance (balanced): MIC 15KΩ, LINE220Ω

    Output impedance (unbalanced): 1KΩ

    Pre-out impedance: 3.3KΩ

    Maximum input level: MIC -18dBV, AUX6dBV

    Maximum output level (balanced): MIC -18dBV, LINE 21.5dBV

    Standard input level: MIC -28dBV unbalanced AUX 2.5dBV

    Standard output level (balanced): MIC-25dBV LINE 0dBV

    Pre-out level: -4.4dBV

    Maximum gain: 62dB

    Inherent noise: -85dB

    SINAD: 75dB

    Phantom power supply: +48V

    Control output voltage: +5V

    Power voltage: AC 220V

    Consumption power: 25W

    尺寸(W3D3H): 482×179×90mm

    Dimensions (W3D3H): 482×179×90mm

    Weight: 3.2Kg


    MC781 multi-functional conference mixer



    MC781 multi-functional conference mixer dimension figure