This user guide covers the following pedals:
Thank you for purchasing a Stereo Effect Pedal. We really mean it. We value that you have placed your trust in our product, often based solely on what you see and hear on the internet. We hope to earn that trust by delivering a quality product that inspires you to make better music.
You may be wondering why all the Stereo Pedals share the same User Guide. These pedals share the same hardware platform and actually have many common features. You may also use Pedal Customizer software to transform the functionality of any Stereo Pedal into any other Stereo Pedal, simply by changing its firmware (internal program).
We do not ship paper User Guides with our products. We feel this wastes paper, when the same information is available here. Also, we update this User Guide from time to time and want you to have the most current version.
Warning: This product contains parts that are sensitive to electro-static discharge (ESD). Removing the bottom cover may expose these parts to ESD, which can result in permanent damage and voids the warranty. For this reason, we strongly advise you not to remove the bottom cover or otherwise disassemble the pedal.
The power jack accepts a standard (5.5 mm OD x 2.1 mm ID) center-negative pedal power adapter (not included). The power adapter must be between 9 V and 12V and capable of supplying 100 mA or more. See this page for a list of recommended adapters.
If you are using a daisy-chain cable to power multiple pedals, the total of all the pedals' current (mA) ratings should be less than the current rating of the adapter.
The input jacks accept input directly from your instrument or amplifier effects loop output. The very high-impedance inputs will not present any significant tone-changing load to the signals that drive them.
The input jacks are capable of accepting several combinations of inputs:
The output jacks provide output to another effects pedal, amplifier input or effects loop input. This low-impedance buffered outputs are capable of driving long cables without a change in tone. If plugging into the input of your amp, you should use the low impedance (Lo-Z) input if available.
The output jacks are also capable of several combinations independently of the input jacks:
Since the input and output connection are independent, you may—for example—plug in a mono input with stereo outputs or stereo inputs with a stereo TRS output.
If you wish for the stereo outputs to have identical (mono) effect signals, reprogram your pedal using Pedal Customizer software and select the Menu → Force Mono option. This is useful for
The pedal can be hacked to drive a wet-only (i.e., "dry kill") signal output for a mono signal:
The Expression Inputs may be used individually or simultaneously.
Each Expression Input controls the function of the knob nearest to it. When the Expression Input is plugged in, the knob determines the maximum range for the expression pedal. The minimum range is typically set on the expression pedal itself (except for the Moog EP-2, whose knob controls the maximum).
Each Expression Input accepts a 3.5mm TRS (tip-ring-sleeve) plug. Most expression pedals (treadles) have a 1/4" (6.35mm) TRS plug, so you will need an adapter cable. Any standard 1/4"-to-3.5mm TRS adapter cable will work, but we offer an Expression Input Adapter Cable specifically designed for this purpose. Using this adapter, the Expression Inputs have been tested to work with following treadles:
The USB Jack is used with Pedal Customizer™ software.
The Mix knob controls the effect level. Full counter-clockwise is 100% dry, while full clockwise is maximum effect level. The maximum effect level is approximately equal to the level of the dry signal. The level of the dry signal is always unity (it does not change with the Mix knob).
The Depth knob controls the length of the reverb tail, or in other words, the size of the room.
The Width knob controls the amount of pitch transposition.
The Time knob controls the delay time. Due to tolerance variations, the marks around the knob are approximate.
Without the µTap Tempo pedal, the delay time is set directly using the knob. The marks around the knob indicate the time in fractions of 1 second:
When using the µTap Tempo pedal, the marks around the Time knob indicate the time in fractions of the tapped (quarter-note) tempo:
The foot switch bypasses the effect and is equivalent to turning the Mix knob to zero. The bypass is buffered, which eliminates the tone change that can be caused by some bypassing schemes.
The LED lights when the effect is active.
Bypassing the effect does not significantly change the power consumption, as it does not turn off power to the pedal.
(Wet Reverb only) Your pedal may be updated using Pedal Customizer software to select between trails or normal bypass. Trails bypass allows the reverb to "trail" off naturally after bypassing the effect.
Delay-based effects such as chorus, delay and reverb work best when placed at the end of the signal chain. The preferred ordering is (other pedals)→chorus→delay→reverb→amplifier. If you are using the distortion in your amplifier, these pedals should be placed in the effects loop.
This simplified diagram illustrates the signal flow through the Stereo Pedal:
|Nominal Input Level||-10 dBu, instrument level|
|Max Input Level||6 Vpk-pk|
|Input Impedance||2.0 MΩ stereo, 1.0 MΩ mono|
|Output Impedance||1 kΩ stereo, 500Ω mono|
|Gain||0 dB, 0% Mix vs. bypass|
|Frequency Response||20 Hz—20k Hz, +0.0/-0.5 dB
(dry signal or bypassed)
|Total Harmonic Distortion + Noise||0.003% typical, 22Hz—22k Hz
(dry signal or bypassed, input: 1.0 VRMS @ 1k Hz)
|Signal-to-Noise Ratio||105 dB typical, A-weighted, 22 Hz—22k Hz
(knobs @ 50%, 2 VRMS reference)
|Power Adapter Input||9-12 V DC, 100 mA, plug center-negative, 5.5 mm OD x 2.1 mm ID|
|Dimensions||2.8" W, 4.6" L, 1.6" H / 72 mm W, 116 mm L, 49 mm H|
|Weight||8.0 oz (220 g)|
*Specifications subject to change without notice.
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.