Shure SCM820-DB25 Digital IntelliMix Automatic Mixer

Shure SCM820-DB25 Digital IntelliMix Automatic Mixer

Shure SCM820-DB25 Digital IntelliMix Automatic Mixer

B&H # SHSCM820DB25 MFR # SCM820-DB25
Important Notice: This item is non-cancelable and non-returnable
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Expected availability: 3-7 business days 
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  • 1Description

The Shure SCM820-DB25 Digital IntelliMix Automatic Mixer is an 8-channel digital automatic mixer designed for use in speech applications, including sound reinforcement, broadcasting and audio recording. It uses Intellimix technology to dramatically improve audio quality in any application where multiple microphones are required and to select channels to open to the mix bus, while attenuating other channels. It comes with a DB25 connector with 8 inputs.

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

DB25 connector with 8 inputs
Per-channel direct outputs allows the mixer 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
1/4" (6.35mm) 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 networked audio configuration
Control system compatible (AMX, Crestron)
UPC: 042406235693
In the Box
Shure SCM820-DB25 Digital IntelliMix Automatic Mixer
  • Limited 2-Year Warranty
  • Table of Contents
    • 1Description
    Analog Performance
    Channel Input Level Monitoring Configuration: Active Balanced 

    Impedance: 5 kΩ 

    Clipping Level: Line (-0): +20 dBV, Mic (+26): −6 dBV, Mic (+46): −26 dBV

    Phantom Power 48 VDC, selectable per channel, 14 mA maximum

     

    Mic level settings only. Phantom power automatically switched off in LINE position.

    AUX Input Configuration: Stereo, Unbalanced 

    Impedance: 10 kΩ 

    Clipping Level: +10 dBV

    Output Connectors (Analog) Mix Output

    Configuration: Active Balanced 

    Impedance: 350 Ω 

    Clipping Level: Line (±0): +20 dBV, Aux (−20): 0 dBV, Mic (−46): −26 dBV

     

    Output Direct

    Configuration: Impedance Balanced 

    Impedance: 150 Ω 

    Max Output Level: +20 dBV

     

    Headphone Output 1/4" (6.35 mm) TRS, 100 mW, 350 Ω, dual mono (will drive stereo phones)
    Connector DB25
    Signal Processing
    Converter 24-bit, 48 kHz, 113 dB dynamic range typical
    Internal Processing 32-bit
    Latency Analog to Analog

    Single Device: 0.51 ms

    In a Link Group: 0.76 + 4TN

     

    From channel input to mix output, Estimated Nominal, ±0.1 ms
    TN = Network latency in milliseconds

    Processing Channel Input: Gain Adjustment Range: −110 to +18 dB
    Low Cut: Corner: 25 Hz to 320 Hz, Slope: 12 dB/octave
    High Shelf: Corner: 5 kHz, Slope: 12 dB/octave, Gain: −18 to +18 dB

    Mix Output: Gain Adjustment Range: −110 to +18 dB
    Low Shelf: Corner: 25 Hz to 20 kHz, Slope: 12 dB/octave, Gain: −18 to +18 dB
    High Shelf: Corner: 25 Hz to 20 kHz, Slope: 12 dB/octave, Gain: −18 to +18 dB
    6-Band PEQ: 25 Hz to 20 kHz, ±18 dB, Bandwidth: 1/70 to 4 octaves
    Limiter: Ratio: 10:1
    Threshold: −50 to −2 dBFS
    Attack: 0.1 ms
    Decay: 100 ms
    Networking
    Network Interface Single Port, 10/100 Mbps Ethernet
    Cable Requirements Cat 5e or higher, shielded, 328' (100 m) maximum
    Network Addressing Capability DHCP, link-local, static
    General
    Dynamic Range Analog to Analog: 110 dB (20 Hz to 20 kHz, A-weighed, typical)
    Output Noise Output Pad
    Line (+0): -90 dBV
    Aux (-20): -110 dBV
    Mic (-46): -135 dBV
    at 20 Hz to 20 kHz, A-Weighted, one channel open
    Equivalent Input Noise Input Gain Setting
    Line (+0): -93 dBV
    Mic (+26): -118 dBV
    Mic (+46): -130 dBV
    at 20 Hz to 20 kHz, A-Weighted, input terminated with 150 Ω, digital gain at +18 dB
    THD + N < 0.05 %
    1 kHz, +4 dBu out, mix output (Master) at +0 dB
    Common Mode Rejection Ratio > 70 dB
    150 Ω balanced source, at 1 kHz
    Polarity Non-inverting, any input to any output
    Housing Steel; Extruded aluminum
    Power Requirements 100 to 240 VAC, 50 to 60 Hz, 1 A
    Operating Temperature Range 0 to 145°F (-18 to +63°C)
    Storage Temperature Range -20 to +165°F (−29 to +74°C)
    Dimensions (H x W x D) 1.7 x 19.0 x 11.4" (43.1 x 482.6 x 289.5 mm)
    Weight 12.0 lb (5.4 kg)
    Packaging Info
    Package Weight 11.6 lb
    Box Dimensions (LxWxH) 22.0 x 14.8 x 2.6"

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