Audio-Technica AT-MX351 manual Control Voltage Out, Control interface examples

Page 13

Control Voltage Out

When a microphone channel turns “on,” as indicated by a Selected Channel LED on the front panel, the channel’s associated Control Voltage Out goes “high” (+4 VDC). See chart on page 12 for pin connection. This signal can be used to light indicator lamps, switch speaker zones on and off, select video cameras, etc. The control voltage should not be connected directly to an inductive load such as a relay coil, as damage to the mixer may result. Several interface circuit possibilities are shown in Figure 6 below.

Equivalent Output

 

Driving One LED

Circuit for Control

 

2v

Voltage Out

 

 

I

Ω

 

 

 

R+40

 

 

CV

 

40Ω

CONTROL

 

R

VOLTAGE

 

 

 

 

 

GND

G

 

Relay Driver

Driving Lamps

IN4001

CV 10KΩ

G

RELAY

 

COIL

+

+

CV

10KΩ

2N3904

2N3904

G

 

Driving Logic Gates

CV

G

Figure 6. Control interface examples.

13

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Contents AT-MX351 SmartMixer  Page Contents Safety Cautions Features What is a SmartMixer?Introduction AT-MX351 Front Panel Power switch Power on indicatorUnbalanced line-level -10 dBV output. RCA jack AT-MX351 Rear PanelPriority Microphones and the Lockout Bus Channels Installation and SetupPreamplifier Gain Auxiliary InputOutput Level Phantom PowerOutput Level LED Meter Internal view of mixer Preamp Outputs Adjusting Off AttenuationInput Limiters Force-on/Force-offControl interface examples Control Voltage OutRack Mounting Daisy-chaining MixersSecurity Caps Specifications† One-Year Limited Warranty
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AT-MX351 specifications

The Audio-Technica AT-MX351 is a versatile mixer that has gained a strong reputation amongst audio professionals for its performance and utility. Designed for various applications, from live sound to permanent installation, the AT-MX351 boasts features that enhance audio quality and ease of use.

One of the standout features of the AT-MX351 is its ability to handle multiple audio sources with ease. It features three programmable microphone inputs, making it perfect for settings where multiple speakers or performers are involved. This is especially useful in conference rooms, lecture halls, and places of worship, where different users may need to take turns speaking without the hassle of connecting and disconnecting microphones.

The mixer is equipped with advanced automatic mixing technology, which intelligently manages the audio levels from various microphones. This prevents feedback and minimizes background noise, resulting in clear and intelligible sound. The AT-MX351 utilizes Audio-Technica's proprietary Automatic Gain Controls (AGC) to ensure that the audio levels remain consistent, providing a professional sound experience.

In terms of connectivity, the AT-MX351 features balanced XLR inputs, allowing for secure connections that maintain audio integrity. It also includes unbalanced line inputs, catering to a wider array of equipment. The mixer offers both balanced and unbalanced outputs, providing flexibility for integration into different sound systems.

Another notable characteristic of the AT-MX351 is its user-friendly interface. The layout of the controls is intuitive, allowing operators to make quick adjustments on the fly. The clear LED indicators help users monitor signal levels easily, making it easier to identify any issues. This is particularly beneficial during live events where quick decision-making is crucial.

The AT-MX351 also incorporates a built-in limiter and compressor, which help to avoid distortion and maintain a consistent sound quality. This feature is especially important in environments with varying acoustic dynamics or when dealing with powerful audio signals.

In summary, the Audio-Technica AT-MX351 mixer stands out due to its robust features, including multiple programmable microphone inputs, advanced automatic mixing technology, and user-friendly controls. This combination of technology and usability makes it an ideal choice for audio professionals seeking reliability and high-quality sound in their applications. Whether for live performances, conferences, or installations, the AT-MX351 proves to be a reliable and effective solution in the audio mixing landscape.