Shure SCM410 4-Channel Automatic Microphone Mixer

The Shure SCM410 4-Channel Automatic Microphone Mixer dramatically improves audio quality in any application in which multiple microphones are required. Features include fast microphone selection, adjustable EQ, and clipping LEDs, and peak-responding output limiter.

Automatic mixing is a tremendous problem-solving tool allowing sound system installers to eliminate common problems such as insufficient gain before feedback and muddy speech quality. Shure is the industry leader in automatic mixing with our unique IntelliMix® technology. IntelliMix automatically gates microphones on and off to optimize sound quality in conference facilities, houses of worship, governmental institutions, schools, etc. The Shure SCM410 Automatic Mixer puts all the seamless performance of the 8-channel SCM810 - the recognized standard in automatic mixing - into a half-rack space.

The SCM410 can be used as a turnkey mixing solution in a variety of speech applications:

• Fixed Audio Installations - houses of worship, schools, conference facilities, legislature, hotels
• Portable Applications - rentals, A/V carts, portable audio racks
• Interfaces with Crestron control systems

Shure SCM410 Features

• Noise Adaptive Threshold
• MaxBus
• Last Mic Lock-On
• NOMA (Number of Open Mics Attenuated) - automatic gain adjustment as additional microphones are activated
• Inputs and Outputs - 4 balanced mic level XLR inputs, 1 balanced mic/line switchable XLR output, and 1 unbalanced RCA auxiliary output
• Increases the clarity and intelligibility of speech
• Dramatically reduces feedback, reverberation, and comb filtering
• Automates several rigorous operator functions
• Minimizes set up time - plug and play
• Frees up channels on the mixing console

• SCM410 4-Channel Automatic Microphone Mixer1
• Rack mount kit1

• Frequency Response (at 1 kHz , channel controls centered) 50 Hz to 20 kHz ± 2 dB ; −3 dB Corner at 25 kHz
• Total Harmonic Distortion<0.1% at +4 dBu out, 50 Hz to 20 kHz (through 22 Hz to 20 kHz filter; Input at 12 o'clock and Master at 12 o'clock, all other controls full counterclockwise)
• Equivalent Input Noise: (150Ω source; A-Weighted)-127 dBV maximum, -129 dBV typical
• Output Noise (channel controls full counterclockwise A-Weighted)
  • Master full counterclockwise: -101 dBV
  • Master full clockwise: -67 dBV
• Common Mode Rejection> 70 dBV at 1 kHz
• PolarityAll inputs to all outputs are non-inverting
• Input Channel Activation
  • Attack Time: 4 ms
  • Hold Time: 0.4 s
  • Decay Time: 0.5 s
• Off-Attenuation13 dB
• Overload and Shorting ProtectionShorting outputs, even for prolonged periods, causes no damage. Microphone inputs are not damaged by signals up to +10 dBV (3V)
• Equalization
  • Low-frequency: 6 dB/octave cut, adjustable corner from 25 to 320 Hz
  • High-Frequency: shelving filter, ±6 dB at 5 kHz, rising to ±8 dB at 10 kHz
• Limiter
  • Type: Peak
  • Threshold: ±16 dBu (at output)
  • Attack Time: 2 ms
  • Recovery Time: 300 ms
  • Indicator: Lights red when limiting occurs
• Input LEDsGreen on channel activation, red at 6 dB below clipping
• Phantom Power12 V DC open-circuit through 680Ω resistors
• Operating Voltage
  • SCM410: 100-120V AC rated nominal, 50/60 Hz, 100 mA (maximum)
  • SCM410E: 220-240V AC rated nominal, 50/60 Hz, 50 mA (maximum)
• Mains Inrush Current (230 V AC, SCM410E only) 0.7, A Peak
• Temperature Range
  • Operating Temperature: -7° to 49°C (20° to 120°F)
  • Storage Temperature: -29° to 74°C (-20° to 165°F)
• Dimensions (HxWxD)44x219x267mm (1 ¾ x 8 5/8 x 10 ½ in.)
• Net Weight1.75 kg (3.86 lbs)