User Manual
Table Of Contents
- Welcome
- Overview
- Quick Start
- Connections
- Basic Spring Reverb and Tremolo Operation
- Reverb Effect Engines
- Tremolo Effect Engines
- Additional Spring Reverb Engines
- Controls
- Standard and Preset Modes
- Universal Bypass TM
- I/O Routing Options (Stereo Routing)
- External Control
- Neuro Mobile App & Neuro Desktop Editor
- The Neuro Desktop Editor
- The Neuro Mobile App
- Daisy-Chaining Neuro Communication
- Neuro Hub (Formerly the Soundblox Hub)
- MIDI
- USB
- True Spring Reverb Specifications
- Troubleshooting
- Frequently Asked Questions
- What kind of instruments can I connect to the True Spring’s inputs?
- Can I power the True Spring directly over USB, without using the 9 Volt supply?
- When connecting the True Spring to a recording interface or mixer, should I used a Lo-Z (microphone) or Hi-Z (line / instrument) input?
- How do I enable Spring Reverb engines via MIDI?
- Can I use the True Spring in my amp’s effects loop?
- How do I update the firmware?
- Rubber Feet
- Waste Disposal Notes
- Warranty
- Version History
SA247 True Spring Reverb User Guide 16
Universal Bypass
TM
Most effect pedals offer either true bypass or buffered bypass. The True Spring Reverb contains two
separate circuits for bypass mode, allowing you to choose the method you prefer. The true bypass
path uses signal relays, which are electromechanical switches. This provides an ultra-low resistance
path from the input jacks to the output jacks, which is effectively the same as a single wire. The
buffered bypass path uses extremely low noise buffers, which provide very low output impedance
and are effective for driving long cables or long chains of effects following the True Spring’s audio
output.
Out of the box, the True Spring operates in true bypass mode. To select a different bypass mode,
open the True Spring’s Hardware Options menu in the Neuro Mobile App or Desktop Editor, then
select an option from the “Hardware Bypass Mode” pull down menu.
We recommend using the bypass method best suited for your signal chain. Ideally, the first pedal in a
signal chain is a buffered input followed by true bypass in the rest of the signal chain.
Both bypass methods have pros and cons associated with them. Buffered bypass provides consistent
input impedance so that if the source is susceptible to variations in input impedance (similar to a
guitar pickup), there won’t be a noticeable change in tone. True bypass has the benefit of providing a
dedicated hardwired bypass signal path. The True Spring features small-signal relays for true bypass
switching that offer reduced pops and clicks compared to the traditional true bypass switching
method using a mechanical switch.
I/O Routing Options (Stereo Routing)
The True Spring’s stereo inputs and outputs offer dramatic stereo effects and complex signal routing
options.
Auto Detect (Default)
By default, the True Spring automatically detects any cable connected to the stereo inputs and
outputs and sets the routing accordingly. The routing options are listed in the table below:
Input(s)
Output(s)
Routing Mode
1 only
1 only
Mono Input, Mono Output
1 and 2
1 only
Sum to Mono
1 only
1 and 2
Mono to Stereo
1 and 2
1 and 2
Stereo In/Stereo Out
Manually Selecting I/O Routing Options
The I/O Routing Mode can also be selected manually with the Neuro Mobile App or Desktop Editor.
The available routing options are listed below. The right side of each diagram shows Inputs 1 and 2,
the left side shows Outputs 1 and 2, and reverb effect processor (blue box labeled “R”) and dry signal
paths are in the center. Check the Neuro Desktop Editor for details on setting up the I/O Routing
Options.