Source Audio Reflex - User Manual

SA163 Reflex User’s Guide 1
Reflex Universal Expression
Controller User’s Guide
Welcome
Thank you for purchasing the Reflex Universal Expression Pedal. The Reflex is one of the most
versatile and advanced expression controllers on the market.
It has seven expression outputs that can all be used simultaneously: three analog expression outputs,
three digital (MIDI) expression outputs, and one sensor output. Each output has flexible,
independent configuration options.
The Reflex also can store up to 128 different MIDI-recallable presets, allowing you to save different
settings for different songs or sets, easily recalling them on stage with a MIDI controller.
The USB connectivity gives the Reflex an extra boost of power, with plug-and-play DAW
compatibility, firmware updates, and more!
Enjoy!
- The Source Audio Team

Source Audio Reflex Specifications

General

Input Impedance	1 MΩ
Inputs	Expression Pedal Input
Outputs	1 x 1/4" output
Power	9V DC (negative tip)
Control Range	0-5V

Summary

Reflex Pedal Overview

Highly Configurable Outputs

Outputs are independently configurable for taper, polarity, range, LFO, and other parameters for different expression standards.

Quick Start Guide

Connecting the Reflex Pedal

Steps for connecting the Reflex to a standard passive expression port on a device using a TRS cable.

Powering the Device

Instructions for inserting the 9V battery and powering on the Reflex pedal.

Expression Output Connection

How to connect a device to Expression Output 1 using a 1/4" TRS plug for basic operation.

Reflex Interface and Controls

Connecting External Devices

Left Side Connection Ports

Details physical connections on the left side, including Treadle, Footswitch, Expression Outputs, Power, and USB.

Connectivity and Basic Operation

Right Side Connection Ports

Details physical connections on the right side: MIDI Out, MIDI In, Sensor Out, and Multi-Function In.

Understanding Expression Outputs

Configurable Output Parameters

Low Frequency Oscillators (LFOs)

Sine LFO Shape

Controls and Configuration Overview

Output Selection Mechanism

Editing Selected Output Parameters

Shape and Parameter Editing

Available Shape Selection Options

Parameter Editing Process

MIDI Parameters and Footswitch Function

MIDI Channel and Type Parameters

Save, Load Buttons, and LED Display

Muting Expression Outputs

Explains how the Footswitch mutes outputs and their behavior when muted (min value, zero, center value).

Mute Modes and Treadle Calibration

Un-Muting Expression Outputs

Calibrating Treadle Range of Motion

Steps to calibrate the treadle's range of motion for proper operation and to create dead zones.

Preset Storage and Recall

Saving a Configuration to Preset

Procedure to save the current configuration to one of 128 preset locations using the Save button.

Recalling a Saved Preset

Procedure to load a previously saved configuration from preset memory using the Load button.

MIDI Communication and Synchronization

MIDI Input and Output Ports

MIDI Program Change Preset Recall

MIDI Clock Synchronization for LFOs

How the Reflex syncs LFOs to MIDI clock tempo for synchronized musical timing.

MIDI Channel and USB Functionality

Setting the MIDI Input Channel

USB-MIDI Device Operation

Explains how the Reflex appears as a MIDI device for DAWs and allows automation via USB.

Expression Output Plug Configurations

Passive TRS (Tip Expression)

Configures expression output for passive TRS tip connection, common for many pedals. Requires stereo cable.

Passive TRS (Ring Expression)

Configures expression output for passive TRS ring connection, used by companies like Zoom and Korg. Requires stereo cable.

Alternative Expression Plug Types

Passive TS Plug Configuration

Configures expression output for passive TS mono connection, common for Line 6 and Eventide devices. Requires mono cable.

Active TS Control Voltage (CV)

Configures output for active control voltage (CV) mode, used with modular synthesizers. Requires mono cable.

Sensor Output and Treadle Adjustment

Sensor Output Plug Details

Adjusting Treadle Resistance

How to adjust treadle friction using a screw under the treadle heel.

Specifications and Troubleshooting Guide

Product Specifications Summary

Troubleshooting Common Issues

Addresses issues like the unit appearing dead, wrong power supply, or corroded cables.

Performing a Hard Reset

Guidance on restoring original firmware via a hard reset to resolve operational problems.