Shure SCM810 8-Channel Automatic Mixer

The SCM810 from Shure is an 8-channel automatic mixer for installed sound applications. 

This automatic mixer is full-featured and packed with compatibility options that have been specifically designed with installed sound applications in mind. Built to improve audio quality wherever multiple microphones are in use, this 8-channel mixer allows for fast mic selection and includes adjustable EQ per channel, adjustable low-frequency roll-off, and a level-selectable peak-responding output limiter.

The SCM810 features 8 balanced mic-line input channels (with Phoenix block connectors), active balanced microphone- or line-level inputs (One unbalanced 1/4" aux level input) and line-level outputs (8 unbalanced 1/4" direct line level outputs and 1 balanced master line level output with a Phoenix block connector).

The SCM810 comes with Shure’s patented IntelliMix® digital signal processing technology. IntelliMix helps you achieve audio clarity in any and every occasion by ensuring that microphones are only activated when they are addressed, which lets you reduce poor audio even when using multiple open mics. This is a great feature for discussion panels, debates, meetings, and so much more.

Other features include 48V phantom power (selectable 46V phantom power per channel), 120/230 Vac power, and the capability to link up to 400 microphones with an internal power supply. The SCM810 is constructed with heavy-duty circuitry and housing that’s highly resistant to RF. Its full rack width, 1RU high build makes it great for permanent install.

More about the SCM Series from Shure

Shure mixers are built on over a generation of experience and expertise. They are specifically designed and precision-engineered to provide installed sound applications unparalleled confidence in performance. The SCM Series of mixers continues this Shure standard with an emphasis on combining quality with affordability.

Shure SCM810 Features

• Eight balanced mic-line input channels (Phoenix block connectors)
• One unbalanced ¼" aux level input
• Eight unbalanced ¼" direct line level outputs
• One balanced master line level output (Phoenix block connector)
• Selectable 46V phantom power per channel
• Level selectable peak output limiter
• Full rack width (single rack height)

• SCM810 8-Channel Automatic Mixer1

• Frequency Response (Ref 1 kHz, channel controls centered)50 Hz to 20 kHz +2 dB; -3 dB corner at 25 Hz
• Total Harmonic Distortion (through 20 Hz–20 kHz filter; Input 1 and Master at 5, all other controls full counterclockwise)< 0.1% at +18 dBV output level, 50 Hz to 20 kHz
• Hum and Noise150 Ohm source; through 400 Hz–20 kHz filter
• Equivalent Input Noise–125 dBV
• Equivalent Input Hum and Noise (150 Ohm source; through 20 Hz–20 kHz filter)–123 dBV
• Output Hum and Noise (through 20 Hz–20 kHz filter; channel controls full counterclockwise)
  • Master full counterclockwise: –90 dBV
  • Master full clockwise: –70 dBV
• Common Mode Rejection>70 dB at 1 kHz
• PolarityMic/Line, Send inputs to all outputs are non-inverting; Aux input to all outputs is inverting
• Input Channel Activation
  • Attack Time: 4 msec
  • Hold Time: 0.4 sec (switchable to 1.0 sec)
  • Decay Time: 0.5 sec
• Off-Attenuation15 dB (switchable to ∞)
• Overload and Shorting ProtectionShorting outputs, even for prolonged periods, causes no dam age. Microphone inputs are not damaged by signals up to 3 V; Line and Monitor inputs by signals up to 20 V
• Equalization
  • Low-frequency: 6 dB/octave cut, adjustable corner from 25 to 320 Hz
  • High-frequency: +6 dB at 5 kHz, +8 dB at 10 kHz, shelving 
• Limiter
  • Type: Peak
  • Threshold: Switchable: off, +4, +8, +16 (dBm at output)
  • Attack Time: 2 msec
  • Recovery Time: 300 msec
  • Indicator: Lights red when limiting occurs
• Input LEDs Green on channel activation, red at 6 dB below clipping
• Phantom Power46 Vdc open-circuit through 6.8 kΩ series resistance perDIN 45 596
• Operating Voltage
  • SCM810: 120 Vac rated nominal (see Voltage Selection for 230 Vac operation), 50/60 Hz, 200 mA
  • SCM810E: 230 Vac rated nominal (see Voltage Selection for 120 Vac operation), 50/60 Hz, 200 mA
• Temperature Range
  • Operating: 32° to 140° F (0° to 60° C)
  • Storage: –22° to 158° F (–30° to 70° C)
• Overall Dimensions  (H x W x D)1¾ x 19 x 12½ inches (44.5 x 483 x 317 mm)
• Net Weight9 lbs 9 oz (4.3 kg)