AT-MX351 Automatic Mixer

$621.18

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The AT-MX351 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.

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
  • Includes rack mount adapters

    Specifications:

  • Input Impedance: Mic: 8,000 Ohms
  • Line: 50,000 Ohms
  • Aux: 50,000 Ohms
  • Link In: 20,000 Ohms
  • Output Impedance: Balanced
  • Line: 200 Ohms
  • Mic: 300 Ohms
  • Unbalanced: 400 Ohms
  • Link Out: 100 Ohms
  • Preamp Out: 750 Ohms
  • Maximum Input Level: Mic: -24 dBV
  • Line: +27 dBV
  • Aux: +17 dBV
  • Maximum Output Level: +22 dBm
  • Nominal Output Level: (0 VU)
  • Balanced
  • Line: +4 dBm (600 Ohms), +4.4 dBV (open circuit)
  • Mic: -46 dBm (600 Ohms), -44 dBV (open circuit)
  • Unbalanced: -10 dBV (open circuit)
  • Preamp Out: -10 dBV (open circuit)
  • Maximum Monitor Output: 700 mW, 20 Ohm load
  • Maximum Gain: 73 dB
  • Frequency Response: 40 Hz to 22 kHz
  • Equivalent Input Noise: -128 dBV (150 Ohms) at maximum Gain
  • Input Attenuation: 10 dB
  • Mic/Line Input Pads: 50 dB
  • Maximum NOMA Attenuation: approximately 20 dB (up to 100 microphones on simultaneously)
  • Microphone Phantom Power: +48V DC
  • Control Voltage Out: +4V DC
  • Power Supply: 120V/230V AC (switchable), 50/60 Hz, 10W
  • Operating Temperature: 32° to 104° F (0° to 40° C)
  • Dimensions: 16.93" (430 mm) W x 9.38" (238 mm) D x 1.75" (44 mm) H (including feet, knobs and connectors)
  • Weight: 6 lbs. 13 oz (3.1 kg)
  • Accessories Included: AC power cable; AT8325/1.0 Link Cable; rack mount adapters; security caps.
    • Model: MX351
    • Manufactured by: Audio Technica


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    CONSUMER ALERT
    Most users do not need a license to operate a wireless microphone system. Nevertheless, operating a microphone system without a license is subject to certain restrictions: the system may not cause harmful interference; it must operate at a low power level (not in excess of 50 milliwatts); and it has no protection from interference received from any other device. Purchasers should also be aware that the FCC is currently evaluating use of wireless microphone systems, and these rules are subject to change. For more information, call the FCC at 1-888- CALL-FCC (TTY: 1-888-TELL-FCC) or visit the FCC’s wireless microphone website at www.fcc.gov/cgb/wirelessmicrophones.