Introduction; About This Guide; Mvc 121 Plus Description - Extron electronics MVC 121 Plus User Manual

Introduction

This section describes this manual and the MVC 121 Plus, including:
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About This Guide

This guide contains information about the Extron MVC 121 Plus audio mixer and volume
controller with DSP. Unless otherwise specified, references in this guide to the "mixer" or
"MVC" relate to the features or operation of the MVC 121 Plus.

MVC 121 Plus Description

The MVC 121 Plus is an audio mixer and volume controller that will mix up to two mic/line
inputs (mono, balanced/unbalanced) with one line level input (stereo, balanced/unbalanced).
All audio input signals are converted from analog to digital prior to processing or routing.
Each mic input and the stereo line level input have their own gain control adjustment screws,
and the mixed output also features a volume control knob.
The MVC offers gain, Parametric EQ filter, and tone processing with quick and intuitive
configuration using the DSP Configurator
wide dynamic range and utilizes 24-bit audio converters with 48 kHz sampling to maintain
audio signal transparency.
Two sets of outputs include a fixed output that is independent from volume control, and
a variable output that is volume adjustable. All inputs and outputs are via 3.5 mm captive
screw connectors, and the gain/volume settings are indicated by an eight segment LED
ladder.
Rotating the gain adjustment screw clockwise increases gain, rotating the screw
counterclockwise decreases gain. Gain values adjust in 1 dB increments.
Volume adjustment interval varies with knob rotation, that is, turning the knob clockwise
increases the volume and turning the knob counterclockwise decreases the volume. The
volume is increased more rapidly at lower volume settings.
The MVC offers RS-232 control of input gain/attenuation, and control of output volume.
The latest firmware can be uploaded using RS-232 or USB and the Extron Firmware Loader
program for Windows
About This Guide
MVC 121 Plus Description
MVC 121 Plus Features
MVC 121 Plus Application Diagram
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software. The DSP built into the MVC provides
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MVC 121 Plus • Introduction 1