Audio-Technica AT-MX351a SmartMixer Five-Channel Automatic Mixer

ITEM #: AT-MX351 MFG #: AT-MX351A

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AT-MX351A - Overview

The Audio-Technica AT-MX351a SmartMixer® five-channel automatic mixer is ideal for meetings, seminars, teleconferencing, worship services, courtroom proceedings, radio and TV broadcasting and A/V applications. All switching is under microprocessor control with proprietary algorithms for instant, seamless operation. An individual priority pre-select switch for each mic/line channel allows choice of one-channel-at-a-time operation, all active, or any mix of moderator override. The last microphone on stays on so that ambient sound is never muted. Plus, any number of SmartMixers can be linked to create a system for large multi-mic installations. The priority control system extends throughout the entire chain.

All MX351 model SmartMixers and MX341 model SmartMixers can be daisy-chained via the included AT8325/1.0 Link Cable and special connectors on the rear panel. The control bus and the audio is carried between mixers by the link cable. The result is that all microphones on a multi-mixer system can be controlled by one microphone connected to any mixer. Since all of the mixers are independently powered, there is no practical limit to the number of SmartMixers that can be daisy-chained.

  • Features:

    • Four automatic Mic/Line inputs, plus Aux in
    • Automatic threshold setting
    • 48V phantom power individually selectable for each channel
    • Limiters on each mic channel prevent individual channel overload
    • Balanced inputs and output, selectable Mic/Line-level
    • Individual gain controls for each channel
    • Switchable manual mode overrides automatic functions
    • Master output level control
    • Pre- or post-controller audio outputs from Mic/Line channels
    • Off attenuation for each input adjustable to -40 dB
    • Sub-D connector for TTL output, plus closure-control input for external control of each channel
    • NOMA operation provided, can be turned on/off
    • Output level meter with Peak and RMS modes
    • Monitor headphone output with adjustable level
    • Internal AC supply
    • Mounts in a single 19" rack space
     
  • Specifications:

    • Input Impedance: Mic: 8,000Ω; Line: 50,000Ω; Aux: 50,000Ω; Link In: 20,000Ω
    • Output Impedance: Balanced: Line: 200Ω; Mic: 300Ω; Unbalanced: 400Ω; Link Out: 100Ω; Preamp Out: 750Ω
    • Maximum Input Level: Mic: -24dBV; Line: +27dBV; Aux: +17dBV
    • Maximum Output Level: +22dBm, Master Level control at maximum (fully clockwise)
    • Nominal Output Level (0 VU): Balanced: Line: +4dBm (600Ω), +4.4dBV (open circuit); Mic: -46dBm (600Ω), -44dBV (open circuit); Unbalanced: -10dBV (open circuit); Preamp Out: -10dBV (open circuit), Master Level control at maximum (fully clockwise)
    • Maximum Monitor Output: 700mW, 20Ω load
    • Maximum Gain: 73dB
    • Frequency Response: 40Hz - 22kHz
    • Equivalent Input Noise: -128dBV (150Ω) at maximum gain, Input terminated with 150Ω, A-weighted using Audio Precision System One
    • Input Attenuation: 10dB
    • Mic/Line Input Pads: 50dB
    • Maximum NOMA Attenuation: Approximately 20dB (up to 100 microphones on simultaneously)
    • Microphone Phantom Power: +48V DC
    • Control Voltage Out: +4V DC
    • Power Supply: 100V - 240V AC, 50 - 60Hz, 30W
    • Operating Temperature: 32°F - 104°F
    • Dimensions (HxWxD): 1.75" x 16.93" x 9.38" (including feet, knobs and connectors)
    • Weight: 7.38lbs
     
  • Item Includes:

    • AC power cable
    • AT8325/1.0 Link Cable
    • Rack mount adapters
    • Security caps
     
  • Warranty:

    • 2 Year Limited End-User
     
  • GTIN:

    4961310112110
     

AT-MX351A - Required Accessories

    California Residents:
    WARNING:
    Cancer and Reproductive Harm - www.P65Warnings.ca.gov