Audio Technica AT-MX381
SmartMixer Eight-channel Automatic Mixer

larger size

US dollars : 1,985.00

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. .

* 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)

Audio-Technica Worldwide contacts

Tel: 0039 0861 81241
Fax: 0039 0861 887 862, eMail

advanced technologic sound magazine
2006 April issue 148

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