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Source Audio Gemini Chorus User Manual

Source Audio Gemini Chorus
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SA242 Gemini Chorus User’s Guide 1
Gemini Chorus Users Guide
Welcome
Thank you for purchasing the Gemini Chorus. This powerful stereo effects pedal features a collection
of meticulously crafted chorus sounds ranging from classic dual-voice sounds to lush quad-voice
ensembles. With a simple control set, the Gemini can work in a wide variety of musical settings, and
the powerful MIDI and Neuro control options under the hood provide access to a vast array of
additional tonal possibilities.
The Gemini is housed in a durable, lightweight aluminum housing, packing rack mount power and
flexibility into a compact, easy-to-use stompbox.
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Source Audio Gemini Chorus Specifications

General IconGeneral
BrandSource Audio
ModelGemini Chorus
CategoryMusic Pedal
LanguageEnglish

Summary

Welcome

Overview of Gemini Chorus Features

Diverse Chorus Sounds

Explains the variety of chorus tones available, from classic to unique.

Flexible Stereo Routing

Details the pedal's ability to work in mono or stereo rigs with various routing options.

Compact Design

Highlights the pedal's durable, lightweight aluminum housing and small footprint.

Universal Bypass™ Explained

Explains the choice between true bypass and buffered bypass signal paths.

Preset Saving Functionality

Describes how to save and recall favorite sounds without needing to remember knob positions.

Neuro Technology Integration

Discusses access to new effects, parameters, and community presets via the Neuro App/Hub.

Deep Control Set Access

Mentions advanced parameters accessible via the Neuro App/USB Editor for sound customization.

Parametric EQ and Low Cut Filter

Notes the inclusion of a 4-band parametric EQ and low cut filter for tonal shaping.

MIDI Control Capabilities

Explains MIDI control capabilities via Neuro Hub or USB, including plug-and-play and MIDI learn.

Quick Start Guide

DC 9V Power Requirements

Instructions for connecting the 9V DC power supply and a warning about using non-Source Audio supplies.

Guitar and Audio Connections

Guide on connecting instruments and amplifiers using standard cables.

Knob Descriptions

Explains the function of Depth, Speed, Mix, and Tone knobs.

Connections

Input Side Connections

Explains how to connect instruments and data to Input 1 and Input 2.

Input 1 Functionality

Describes the primary input for instruments and line-level audio sources.

Input 2 Functionality

Explains Input 2's dual role as an audio input or Neuro App data connection.

Output Side Connections

Output 1 Functionality

Describes the primary output for connecting to amplifiers or recording interfaces.

Output 2 Functionality

Explains Output 2's function as a secondary audio output or Neuro App data daisy-chain output.

Example Neuro Daisy-Chain Connections

Mono Audio Path with Neuro Daisy-Chain

Shows a mono audio path configuration with Neuro data daisy-chaining.

Mono-To-Stereo Audio Path with Neuro Daisy-Chain

Demonstrates a mono-to-stereo audio path with Neuro data daisy-chaining.

Power and Control Connections

DC 9V Power Requirements

Specifies the required power supply voltage, current, and plug polarity.

USB Computer Connection

Explains connecting to computers via USB for firmware, parameters, and MIDI.

Control Input Port Usage

Describes connecting external control devices like expression pedals or Neuro Hub.

Basic Chorus Operation Explained

Effect Types

Classic Chorus

Explains the Classic Chorus effect, combining dry signal with one modulated clone.

Dual Chorus

Describes the Dual Chorus effect, a dual-voiced chorus for a more animated sound.

Additional Effect Types

Quad Chorus

Describes the Quad Chorus effect, using four voices for a deep, lavish sound.

Loading Other Effects

Information on loading Phaser and Flanger effects via Neuro App or USB Editor.

Controls

Knobs and Effect Switch

Explains the Depth, Speed, Mix, Tone knobs, and the Effect Switch.

LED Indicators

Describes the Engage/Bypass LED and Control Input LED.

Footswitch Operation

Details the function of the Engage/Bypass Footswitch.

Control Details

Knob Functionality

Elaborates on the Speed, Mix, and Tone knobs' adjustments.

External Control LED

Explains the function of the External Control LED.

Footswitch Functionality

Reiterates the operation of the Engage/Bypass Footswitch.

Preset Storage and Recall

Saving Your First Preset

Step-by-step guide to saving a new user preset.

Editing a Preset

How to modify existing saved presets.

Exiting Preset Mode

Instructions for exiting the preset management mode.

Universal Bypass™ Explained

Stereo Routing Options

Parametric EQ

EQ Band Configuration

Details frequency, boost/cut, and Q for each of the four EQ bands.

Low Cut Filter Function

External Control

Expression Control

How expression pedals or Hot Hand controllers can be used.

Expression Pedal Input

Details connecting Source Audio expression pedals via a 3.5mm TRRS cable.

Expression Pedal Configuration

Hot Hand Input and Configuration

Hot Hand Configuration

Steps to calibrate and map the Hot Hand for motion control.

Hot Hand Axis Explanation

Explains the X and Y axes of expression carried on the TRRS cable.

MIDI Control Options

Neuro App and Neuro Hub

Details the Neuro App for mobile devices and the Neuro Hub for system integration.

MIDI Communication

Explains how the Gemini can be controlled via MIDI messages through USB or the Neuro Hub.

MIDI Learn Functionality

Assigning MIDI Controllers

Step-by-step process for mapping MIDI CC messages to pedal parameters.

Parameter Mapping Details

Explains how CC values map to knobs, footswitches, and effect types.

MIDI Settings and Synchronization

Reset MIDI Mapping

How to clear all expression, Hot Hand, and MIDI mappings.

MIDI Channel Configuration

How to change the MIDI channel the Gemini responds to.

MIDI Clock Synchronization

How the Gemini syncs its LFO to MIDI clock and how the Speed knob behaves.

USB and Tap Tempo

USB Connectivity and MIDI

Explains USB connection, editor software, and USB-MIDI communication.

External Tap Tempo

Information on enabling and using an external tap tempo switch.

Tap Tempo Switch Circuit

Specifications

Dimensions and Weight

Provides the physical size and weight of the Gemini Chorus pedal.

Power Requirements

Details the DC voltage, current, and connector type for power.

Audio Performance Metrics

Lists input/output impedance, DNR, and bit depth.

Troubleshooting

General Troubleshooting

Covers restoring factory settings and general noise reduction tips.

Noise Issues

Provides advice on identifying and resolving noise sources like power or cables.

Troubleshooting Specific Issues

Hot Hand and Unit Issues

Solutions for Hot Hand not working or the unit appearing dead with no LEDs.

Hard Reset Procedure

Steps to perform a hard reset to restore factory firmware and settings.

Frequently Asked Questions

Instrument Input Compatibility

Discusses compatible instrument types and input impedance.

USB Powering Clarification

Clarifies that the Gemini cannot be powered directly via USB.

Recording and MIDI Advice

Recording Interface Connection

Recommends Hi-Z input for connecting to mixers or interfaces.

MIDI Response Issues

Explains why the Gemini might not respond to MIDI and how to format messages.

MIDI Effects and Physical Features

Extended Effect Types via MIDI

Lists CC values for enabling various effect types via MIDI.

Rubber Feet Installation

Instructions for applying included rubber feet for pedalboard mounting.

Waste Disposal Notes

Warranty Information

Limited Transferrable Warranty

Details the 2-year warranty, coverage, and transferability.

Warranty Service and Contact

Information on how to obtain warranty service and contact Source Audio.

Warranty Disclaimer and Version History

Disclaimer and Limitation of Warranty

States warranty exclusions, limitations, and legal rights.

Version History

Lists the dates and descriptions of manual updates.

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