Automatically controls multiple microphones for optimum system performance.
- Four Mic/Line inputs with individual priority pre-select switch for each channel
Balanced inputs and output are individually switchable between mic and line-level
Single threshold setting for all channels
Individual gain controls for each channel
Switchable manual mode overrides automatic functions
Master output level control
TTL logic output signals available to control speaker or camera switching, tally lights, etc.
12V phantom power individually selectable for each channel
Off attenuation for each input adjustable to -20 dB
Output level meter with Peak and RMS modes
Mounts in a single 19" half-rack space
Includes rack mount adapters
Audio-Technica AT-MX341a SmartMixer Four-Channel Automatic Mixer
The AT-MX341a Automatic 4-channel Smartmixer is ideal for meetings, seminars, teleconferencing, worship services, 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 channels 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.
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- Input impedence: mic: 4,000 ohms; Line: 30,000 ohms
Output impedence: mic: 200 ohms; Line: 320 ohms
Maximum input level: Mic: -20 dBV; Line: +30 dBV
Maximum output level: (OVU) Line: +14 dBm (600 ohms); +4.4 dBV (open circuit); Mic: -46 dBm (600 ohms), -44 dBV (open circuit)
Maximum gain: >=70 dB
Frequency response: 60 Hz to 30 kHz at —3 dB points
Dynamic range: 75 dB +/- 10 dB, depending upon control settings
Equivelent input noise: -120 dBV (150 ohms) at maximum gain
Input attenuation: 10 dB
Mic/Line input pads: 50 dB
Microphone Phantom power: +12V DC
Control voltage out: =4V DC
Power supply: 12V AC, 150 mA, min.
Operating temperature: 32° to 104 ° (O° to 40°)
Dimensions: 8.25" (210 mm) W x 9.38" (238 mm) D x 1.75" (44 mm) H (including feet, knobs and connectors)
Weight: 3 lbs 7 oz. (1.6 kg)
Accessories furnished: AC power supply; AT8325/1.0 link cable
Optional accessory: AT8628 dual rackmount joining plate (not included)