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Audio Technica AT-MX381 SmartMixer Eight-channel Automatic Mixer

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Category: Audio-Technica, Pro-Audio-Installation-Sound-Install-Sound-Mixers

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Equipped with optional computer control, the AT-MX381 SmartMixer® is the latest addition to Audio-Technica’s family of automatic mixers. This microprocessor-controlled automatic mixer is designed to provide automatic mixing functions for installed sound, house of worship, broadcast and conference applications. Engineered for intuitive, easy-to-use operation, the new SmartMixer automatically keeps the number of open microphones to a minimum, bringing background noise and feedback under control and providing increased clarity and audio quality

Eight balanced inputs allow use with both mic- and line-level signals
Each input provides:
-Phantom power (48V), individually selectable
-Individual gain and volume controls
-Gate attenuation (adjustable)
-Low-cut filter (individually selectable via SmartMixer Software)

An RS232 data port provides a connection point for a PC with included SmartMixer Software

Compatible with Crestron® and AMX® systems

External control capability enables the SmartMixer to activate other devices
Force-On – allows an external contact closure to force its associated input to turn on
Force-Off – allows an external contact closure to force its associated input to turn off
Control Voltage Out – a voltage appears when the associated input’s gate opens or turns “on”

Selectable NOMA (Number of Open Mics Attenuated) circuitry helps control feedback

Priority pre-select feature allows priority of each microphone to be independently assigned

Last Mic On selectable for continuous room ambiance

Linking capability for 16 units (up to 128 channels)

A direct output connection is available for each input

Equipped with two audio outputs (one balanced, one unbalanced) to drive amplification systems or other equipment

Monitor headphone output with level control

Basic functions are configured via front panel; detailed settings through SmartMixer Software

Mounts in a single 19" rack space via integral rack mount

Input Impedance Mic Level: 6600 ohms
Line Level: 8500 ohms
Output Impedance Balanced
Line Level: 300 ohms
Mic Level: 350 ohms
Unbalanced: 400 ohms
Direct Output: 60 ohms
Maximum Input Level -50 dBu (gain at Max)
Maximum Output Level 22 dBm (THD+N at 1%)
Maximum Monitor Output 50mW (@ 1% THD+N) with 16 ohm load
Maximum Gain 69 dB
Frequency Response 20 to 20K Hz (±3 dB)
Equivalent Input Noise -130 dBu*
Microphone Phantom Power +48V DC
Control Voltage Out +4V DC
Power Supply 100/240V AC (auto-select), 50/60 Hz, 20W
Operating Temperature 32° to 104° F (0° to 40° C)
Dimensions 16.93” (430 mm) W x
9.05” (230 mm) D x
1.75” (44 mm) H
(not including feet, knobs and connectors)
Weight 8 lbs. 6 oz (3.8 kg)

* Input terminated with 150 ohms, A-Weighted using Audio-Precision System Two.


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