Shure SCM820 Digital IntelliMix Installation guide

SCM820 Digital IntelliMix® Automatic Mixer
Overview
Features
The Shure SCM820 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.
• Seamless automatic mixing and reduced background noise through dynamic channel gating and attenuation
• 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.
• DB25 or logic-enabled block connector models available, each with 8 inputs
• Per channel direct outputs for use as an insert to a mixing console or recording
• Mix A and B outputs with selectable mic or line level connect to a sound reinforcement system, mixing console, or recording device.
• Individual channel control for quick adjustment of gain, limiter, EQ, and solo/mute
• LED meter rings vibrantly display real-time settings and output levels
• Browser-based control software delivers comprehensive software control, monitoring, routing and configuration
• 3rd party control system (AMX, Crestron) compatible
• Models available with Dante™ digital networked audio for multi-channel audio networking over Ethernet
• Dante upgrade card available for standard Ethernet models
• Dante Virtual Soundcard license included with Dante-equipped models to enable recording and playback capabilities between a computer and Dante-
equipped devices
Available Models and Accessories
I/O AND NETWORKING CONFIGURATIONS
SCM820
Eight Channel Digital Automatic Mixer, Block Connectors
SCM820-DAN
Eight Channel Digital Automatic Mixer, Block Connectors, Dante™ Digital Audio
SCM820-DB25
Eight Channel Digital Automatic Mixer, DB25 Connectors
SCM820-DAN-DB25
Eight Channel Digital Automatic Mixer, DB25 Connectors, Dante™ Digital Audio
INSTALLABLE UPGRADE CARD
A820-NIC-DANTE
Dante™ Digital Audio Upgrade Card for SCM820 Standard Ethernet Versions
ACCESSORY CABLES
DB25-XLRM
Eight Channel DB25 to XLR Male Audio Snake, 25 ft.
DB25-XLRF
Eight Channel DB25 to XLR Female Audio Snake, 25 ft.
DB25-TRSM
Eight Channel DB25 to TRS Audio Snake, 25 ft.
SCM820 - Front Panel
Automatic Mixers
SCM820 Rear Panel
SCM820-DAN-DB25 Rear Panel

General
Dynamic Range
(20 Hz to 20 kHZ, A-weighed, typical)
Analog-to-Analog: 110 dB
Analog-to-Dante, Dante-to-Analog: 113 dB
Output Noise (mix output / direct output)
(20 Hz to 20 kHz, A-Weighted, one channel open)
Output Pad
Line (+0): -90 dBV
Aux (-20): -110 dBV
Mic (-46): -135 dBV
Equivalent Input Noise
(20 Hz to 20 kHz, A-Weighted, input terminated
with 150Ω, digital gain at +18 dB)
Input Gain Setting
Line (+0): -93 dBV
Mic (+26): -118 dBV
Mic (+46): -130 dBV
THD+N
1 kHz, +4 dBu out, mix output (MASTER) at +0 dB
<0.05%
Common Mode Rejection Ratio
150Ω balanced source, at 1kHz
>70 dB
Polarity Non-inverting, any input to any output
Dimensions 44 mm x 483 mm x 289 mm
(1.7 in. x 19.0 in. x 11.4 in.), H x W x D
Weight 5.5 kg (12.0 lbs)
Housing Steel; Extruded aluminum
Power Requirements 100 to 240 V AC, 50-60 Hz, 1 A
Operating Temperature Range −18°C (0°F) to 63°C (145°F)
Storage Temperature Range −29°C (-20°F) to 74°C (165°F)
Analog Connections
Channel Input Configuration:
Impedance:
Clipping Level:
Active Balanced
5 kΩ
Line (-0): +20 dBV
Mic (+26): −6 dBV
Mic (+46): −26 dBV
Phantom Power 48 V DC, selectable per channel, 14 mA max.
Mic level settings only. Phantom power automatically switched off in LINE position.
Aux Input Configuration:
Impedance:
Clipping Level:
Stereo, Unbalanced
10 kΩ
+10 dBV
Mix Output Configuration:
Impedance:
Clipping Level:
Active Balanced
350 Ω
Line (±0): +20 dBV
Aux (−20): 0 dBV
Mic (−46): −26 dBV
Direct Output Configuration:
Impedance:
Max Output Level:
Impedance Balanced
150 Ω
+20 dBV
Headphone Output 6.35 mm (1/4”) TRS, 100 mW, 350 Ω, dual mono (will drive stereo phones)
Digital Signal Processing
AD/DA Converter 24-bit, 48 kHz, 113 dB dynamic range typical
Internal Processing 32-bit
Latency
From channel input to mix output, Estimated
Nominal, ±0.1 ms
Analog to Analog:
Analog to Dante:
Dante to Analog:
Dante to Dante:
Single Device (ms)
.51
.29
0.28 + TN
0.06 + TN
In a Link Group (ms)
0.76 + 4TN
0.54 + 4TN
0.53 + 5TN
0.31 + 5TN
TN = Network latency in milliseconds, as set in the device preferences page or Dante Controller.
Note: Dante network latency is typically associated with the receiving device.
Channel Input Processing Gain Adjustment Range:
Low Cut:
High Shelf:
−110 dB to +18 dB
Corner: 25 Hz to 320 Hz
Slope: 12dB/octave
Corner: 5 kHz
Slope: 12dB/octave
Gain: −18 dB to +18 dB
Mix Output Processing Gain Adjustment Range:
Low Shelf:
High Shelf:
6-Band PEQ:
Limiter:
−110 dB to +18 dB
Corner: 25 Hz to 20 kHz
Slope: 12dB/octave
Gain: −18 dB to +18 dB
Corner: 25 Hz to 20 kHz
Slope: 12dB/octave
Gain: −18 dB to +18 dB
25 Hz to 20 kHz, ±18 dB
Bandwidth: 1/70 to 4 octaves
Ratio: 10:1
Threshold: −50dBFS to −2dBFS
Attack: 0.1 ms
Decay: 100 ms
Networking
Network Interface SCM820
SCM820-DAN
Single Port, 10/100 Mbps Ethernet
Dual Port, Gigabit Ethernet, Dante digital audio
Cable Requirements Cat 5e or higher, shielded, 100 m maximum
Network Addressing Capability DHCP, link-local, static
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Product Specifications
90A20082 Hardware Kit (SCM820, SCM820-DAN)
90A20082 Hardware Kit (SCM820-DB25, SCM820-DAN-DB25)
95A20437 Ethernet cable
region dependent
(see table below)
Power Cable
95A20438 USB Flash Drive
Furnished Accessories
Power Cable by Region Part Number
US 95B8389
Brazil 95A14336
Argentina 95A14335
Europe 95C8247
UK 95A8713
Japan 95B9021
China 95B9073
Korea 95B9074
Australia 95A9128