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RCF M 20 Series User Manual

RCF M 20 Series
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M 20X Digital Mixer Reference Guide
1
M 20X Digital Mixer REFERENCE GUIDE
Date: 07 Jan 2020
Rev.: 2.1
This document refers to Firmware version 158
M 20 series products offer all-in-one mixing, processing and routing capabilities, including a comprehensive set of
recording and playback functions. The User Interface has been designed so that every parameter is reachable within
few operations. All models are equipped with 20 analog inputs (16 of which are with remote controlled preamps) and
14 output channels, between the balanced analog outputs and the AES/EBU digital output.
M 20 series digital mixing consoles are based on floating-point DSP (digital signal processors), running at a sample rate
of 48 kHz, ensuring maximum audio quality and low noise floor, an essential requirement for modern audio applications.
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RCF M 20 Series Specifications

General IconGeneral
Channels20
USB PlaybackYes
Mic Inputs8
Phantom PowerYes
Line Inputs12
Aux Sends4
Main Outputs2
A/D Resolution24-bit

Summary

1. OVERVIEW

Hardware Description

Details the physical components and layout of the front panel's upper section of the M 20X mixer.

System Overview

Provides a general overview of the M 20X Digital Mixer's capabilities and signal flow.

2. FIRMWARE UPDATE

FIRMWARE UPDATE PROCEDURE

Step-by-step guide on how to download, prepare, and install firmware updates onto the M 20X mixer.

3. BACKUP & RESTORE

BACKUP FUNCTION PROCEDURE

Instructions for creating a backup of the mixer's configuration, presets, and settings onto a USB drive.

RESTORE FUNCTION PROCEDURE

Steps to load a previously saved backup package onto the M 20X mixer, restoring settings and presets.

4. PROCESSING

INPUT PROCESSING

Details the processing stages available for input channels, including Channel, Gate, PEQ, Dynamics, and Sends.

OUTPUT PROCESSING

Details the processing sections for all outputs, including EQ, Delay, and Compressor/Limiter.

EFFECTS

Explains the 4 stereo FX engines, including Reverb, Delay, and Modulation effects with their parameters.

MONITORING

METERS

Monitoring input, output, and FX signal levels, including mute status and gain reduction indicators.

RTA

Using the Real-Time Analyzer on the CUE bus to analyze frequency content of audio signals.

PHONES

Configuration and monitoring of the headphone output, controlled by CUE activation or main mix signal.

PLAY/REC

SETUP

Configuring Player and Recorder modes for different external storage devices like USB and SD Card.

PLAYER

Operating the internal player in Stereo or Multitrack mode, including browsing songs and playback controls.

RECORDER

Performing stereo or multitrack recordings, managing filenames, and understanding storage formats.

5. SYSTEM

SHOW

Saving and recalling mixer settings, presets, and global configurations using SHOW memories.

NETWORK AND WIFI

Configuring LAN settings and the local WiFi Access Point, including driver selection and security.

USER KEYS

Programming and assigning functions to the 8 User Keys for quick access to scenes, transport, and shortcuts.

I/O ROUTING

INPUTS

Selecting the source for each input channel and FX return channel from available analog, USB, or SD card sources.

OUTPUTS

Configuring sources for output channels like MIX OUT, AES OUT, and PHONES LR.

MUTE AND DCA GROUPS

Configuring DCA and MUTE groups for simultaneous control of multiple channels and their mute status.

UTILITIES

AUDIO OUTPUTS

Adjusting routing settings and level/delay values for AES OUT and PHONES outputs.

SURFACE UTILITIES

Performing fader calibration and adjusting LCD/LED brightness for the mixer's surface controls.

CUSTOM FADERS

Configuring the six custom faders to control various parameters like DCA Groups or FX Sends.

CONFIG MIXER

Setting the mixer's boot mode and performing factory resets, with warnings about data loss.

INFO

USB STORAGE

Managing data transfers using external USB drives for importing and exporting user presets and configurations.

IMPORT

Step-by-step process to import various item types (Show, Gate, PEQ, etc.) from a USB drive into the mixer.

EXPORT

Exporting saved shows, presets, and configurations to a USB drive, selecting item types and package names.

MIDI SETTINGS

MIDI MAPPING

Overview of MIDI control change and program change mappings for controlling the mixer with external MIDI controllers.

6. VIEW BUTTONS

FADER SELECT VIEW

Provides a summary of channel information, routing, and fader levels for quick access to processing pages.

USER KEYS VIEW

Displays a summary page of User Key configurations, showing assigned functions for each key.

7. TECHNICAL SPECIFICATIONS

8. BLOCK DIAGRAM

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