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ShureSKU: 1005407

No Longer Available
Item has been discontinued by the Manufacturer.

Designed for use in speech applications including sound reinforcement, broadcasting, and recording, the SCM820 uses IntelliMix® technology to dramatically improve audio quality when many channels of microphones need to operate simultaneously.

Multiple I/O configurations and networking options ensure analog and digital connectivity between devices.


  • IntelliMix Technology
    • Delivers seamless automatic mixing and reduced background noise through dynamic channel gating and attenuation
    • NAT (Noise Adaptive Threshold) continuously adjusts the activation threshold for opening a channel
    • Number of Open Microphones Attenuation (NOMA) determines the amount of gain attenuation for a mix output when the number of active microphones changes
    • Last Mic Lock-On (LMLO) keeps the most recently activated microphone open until another microphone is activated
    • MaxBus ensures that only one channel is opened per sound source, reducing comb filtering for clear and intelligible speech
    • IntelliMix Modes offer five different mixer mode presets of reliable automixing styles (Classic, Smooth, Extreme, Custom, or Manual) to quickly tailor the mix for a particular application
  • Enhanced I/O support for greater application flexibility and digital connectivity
    • DB25 or logic-enabled block connector models available, each with 8 inputs
    • Per-channel direct outputs allow the SCM820 to be used as an insert processor
    • Mix A and B outputs with selectable mic or line level connect to a sound reinforcement system, mixing console, or recording device
    • Dual mixer operation enables routing of independent automixes to the mix A and B outputs, allowing two entirely different mixes to result from the same set of inputs
    • Aux inputs on both the front and back panel easily connect to media players
    • ¼" (6.35 mm) stereo headphone output for channel solo and mix monitoring
  • Comprehensive Control
    • Channel control knobs allow quick adjustment of gain, limiter, and EQ settings, and solo/mute functions on input channels
    • Output mix controls and meters enable front-panel master gain and limiter control as well as signal monitoring
    • LED meter rings display input audio or IntelliMix gain levels for each channel
    • Browser-based control software delivers comprehensive software control, monitoring, routing, and configuration of all signals and settings and adds a parametric 8-band EQ
  • Advanced Networking
    • Standard Ethernet or Dante™ digital networked audio configurations available
    • Dante-equipped models enable multi-channel audio networking over Ethernet
    • Dante upgrade card available for standard Ethernet models
    • Link Dante-equipped SCM820 mixers to form large automixes of up to 12 units (96 channels of audio)
    • Control system compatible (AMX, Crestron)
  • Digital Feedback Reduction
    • Two channels of patented Shure DFR (Digital Feedback Reduction)
    • Assignable to input channels and mix outputs
    • Automatic feedback detection and filter deployment
    • Up to 16 filters per channel
    • 25 Hz to 20 KHz bandwidth
    • Up to 18 dB gain reduction per filter
    • Selectable low / high Q filter width (1/40th or 1/70th octave)
    • “Freeze” feature that locks depth and frequency of existing filters to avoid unwanted automatic changes
    • Auto-clear on power cycle or timeout that returns filter settings to a pre-defined state for the next event
    • Ability to save current settings to use later or load preexisting setups
    • Watch a video demonstration: How To Set Up Digital Feedback Reduction for SCM820

Available Options

SCM820 8-Channel Digital Automatic Mixer, Block Connectors
SCM820-DAN 8-Channel Digital Automatic Mixer, Block Connectors, Dante Digital Audio
SCM820-DB25 8-Channel Digital Automatic Mixer, DB25 Connectors
SCM820-DAN-DB25 8-Channel Digital Automatic Mixer, DB25 Connectors, Dante Digital Audio                       

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