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Audio Technica AT-MX351 Microphone Mixer
 

Audio Technica AT-MX351 Microphone Mixer

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
 
 
Technical 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
1 -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 mics 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 104o° F (0o° to 40o° 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


 
   
 
 
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Last modified: Friday, 30-Nov-2007 13:38:24 GMT