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RedSeven Amplification AMP CENTRAL - User Manual

RedSeven Amplification AMP CENTRAL
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AMP CENTRAL
Reactive load I.R. Loader
Version 2.1
Aug 2023

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Summary

Whats New After S;N 22056

24 V Power Supply Update

Introduction of a 24V power supply for improved headroom and headphone amplification.

FLAT;CUT Switch Functionality

Control over high frequencies on main outputs, offering flat or a gentle low-pass filter.

Balanced Main Output Jacks

Update to fully balanced 6.3mm output jacks, improving signal integrity.

Introduction and Concept

What is Amp Central?

Defines Amp Central as a hub for connecting tube amplifiers for silent stages or studio use.

The Concept of Reactive Load and IR

Explains the use of Dummy Load (Reactive Load) and Impulse Response technology for amp simulation.

Logic Schematic

First Usage Guidance

Front Panel Controls Overview

Virtual Cabinet Selector

Allows selection of one of sixteen preloaded Impulse Responses (IRs).

Input Level Adjustment

Sets the amplifier's output attenuation to achieve optimal signal without clipping.

Headphone Level Control

Master volume control for the headphone output.

Resistive;Reactive Switch

Choice between a pure resistive or a completely reactive load.

Flat;Cut Frequency Control

Applies a gentle slope around 10KHz to the IR output, affecting high frequencies.

Auxiliary Input

Connects external line-level audio sources for monitoring with headphones.

Back Panel Connections

Loop FX Stereo Inserts

Stereo effects loop placed after the IR loader for external time-based effects.

To Speaker Output

Jack for connecting a real cabinet, bypassing the internal load.

Line Output Options

Provides isolated line-level signal from the reactive load, with adjustable volume.

From Amp Out Connector

Primary input jack for connecting the amplifier's output.

MIDI Input;Thru Ports

For remote IR selection using MIDI CC messages.

Main Outputs (XLR & Jacks)

Balanced main outputs, offering flexibility for connection formats.

USB Connectivity

For uploading custom Impulse Responses (IRs) to the device.

Input Section and Calibration

Setting Proper Input Level

Guidance on setting input level for optimal signal-to-noise ratio without clipping.

Handling Crunch and Distorted Sounds

Advice on managing compressed sounds to avoid clipping.

Achieving Sufficient Output Volume

Troubleshooting steps for low output volume, directing users to other gain controls.

Core Functionality Explained

Reactive Load Section Details

Details the 100W RMS / 8 ohm reactive/resistive load and connection requirements.

Line Output Isolation

Explains the isolated line output for avoiding ground loops.

Impulse Response (IR) Specifications

Defines supported IR file types (.WAV, MONO, 24bit, 48kHz) and length limits.

Advanced Features

Virtual Cabinets (IRs) Usage

Information on using preloaded and custom IRs, including USB upload.

Headphones and Aux Input

Details on headphone monitoring and connecting external audio sources.

Loop FX Integration

Describes the stereo FX loop placement and benefits for time-based effects.

Connecting to PC;MAC

USB Connection Procedure

Step-by-step guide for connecting Amp Central to a computer via USB for IR management.

IR File Structure and Updates

Explains the folder structure for IRs and firmware update changes.

Impulse Response File Management

IR File Substitution

Instructions on replacing existing IRs by copying/pasting files.

Supported IR File Types

Specifies that only 48Khz, 24bit, MONO .WAV files are read.

Tips for Long IR Files

Advice on handling very long IR files (4-500ms) for compatibility.

Outputs and MIDI Control

Output Configurations

Details on balanced XLR and 6.3mm jack outputs and their evolution.

MIDI Channel Selection

Procedure to change the MIDI channel for remote IR selection.

MIDI Control Mapping

MIDI Channel to Bank;Cabinet Mapping

Table showing MIDI channel assignments for selecting IR banks and cabinets.

Control Change (CC) for IR Selection

List of Control Change numbers corresponding to IR banks and cabinets.

Troubleshooting and Warranty

Troubleshooting No Power

Checks for power supply voltage, polarity, and cord connection issues.

Troubleshooting No Sound

Steps to resolve no sound issues, checking amp standby, volume, and connections.

Warranty Disclaimer

Information on warranty terms, voiding conditions, and contact details.

RedSeven Amplification AMP CENTRAL Specifications

General IconGeneral
BrandRedSeven Amplification
ModelAMP CENTRAL
CategoryAmplifier
LanguageEnglish

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