Are Oscillator Devices products compatible with my MIDI controller?

Oscillator Devices products conform to the MIDI 1.0 standard and are therefore compatible with all common MIDI controllers.

Which MIDI cable do I need and what is the pin assignment of the Mini-TRS MIDI sockets?

All Oscillator Devices products with Mini-TRS MIDI sockets are assigned according to MIDI TRS type A. This is the official MIDI standard for MIDI TRS. (See also https://minimidi.world).

What is the latency on the MIDI Thru port?

All Oscillator Devices products have software MIDI Thru with a latency between one and two characters (approx. 0.5 ms).


I want to upgrade effects device XYZ, is that possible with the Imp/Goblin?

In most cases it is possible. Here is a list of effects devices that have already been successfully upgraded:

ManufacturerModelMIDI DeviceFunction
Black Arts Toneworks Raw Heart ODGoblin-3PDTMIDI-Bypass QM + WB
BossSY-1Goblin-SPSTMIDI-Bypass + Pitch + Tempo (EXT CTL)
BossDS-1/BD-2/OD-3 etc. Goblin-SPSTMIDI-Bypass
Earthquaker Devices Hoof/Dunes/Plumes etc. Imp-SPSTMIDI-Bypass
Earthquaker Devices Palisades Goblin-SPSTMIDI-Bypass + Channel 2 + Boost
Electro Harmonix Big Muff/East River Drive/Glove etc. Imp-3PDTMIDI-Bypass
Electro Harmonix Nano POG/Freeze Imp-SPSTMIDI-Bypass + Hold
Electro HarmonixPitch ForkGoblin-EXPMIDI-Bypass + Hold + Pitch + Mode Switch
Electro Harmonix Memory Man Hazarai Goblin-3PDTMIDI-Bypass + Tap Tempo via MIDI-Clock or Presets
Electro Harmonix POG2Goblin-3PDTMIDI-Bypass + Presets
GFI Systems JonassusGoblin-SPSTMIDI-Bypass + Channel-Switch
Ground FXRavager/Boneflower Goblin-SPSTMIDI-Bypass + Boost
Lichtlaerm Altar/Ritual etc. Goblin-SPSTMIDI-Bypass + Boost
OBNE Dark Star Goblin-SPSTMIDI-Bypass
Strymon El Capistan/Flint/DIGGoblin-SPSTMIDI-Bypass + Tap Tempo + Favorite Switch
Universal AudioStarlight/GoldenGoblin-SPSTMIDI-Bypass + Tap Tempo/Preset
Walrus Audio Iron Horse v2Imp-3PDTMIDI-Bypass
Walrus Audio MonumentGoblin-SPSTMIDI-Bypass + Tap Tempo via MIDI-Clock
WamplerClarksdale/Pantheon etc. Imp-SPSTMIDI-Bypass

Here are the most common reasons why installation is not possible:

  • No room: The most common reason is lack of space. In addition, installation in housings smaller than 1590B is rarely possible.
  • The 3PDT switch is used to attach parts of the effect board and can therefore not be replaced. It’s possible to fasten the board with separate standoffs, but this is very time-consuming and is only worthwhile in the rarest of cases.
  • Special switches: Some manufacturers use switches with special functions, e.g. TC Electronics. Installation is usually not possible here.

I want to upgrade effects device XYZ, which version of the MIDI upgrade do I need?

That’s easy:

  1. Does the effects device have one or more switches that you want to operate? Single switch = Imp, Multiple switches or special functions = Goblin.
  2. Does the effects device have one or more 3PDT true bypass switches? Then you need the 3PDT variant (Imp-3PDT, Goblin-3PDT).

I read the installation manual but I’m still completely lost. What can I do?

For that case there is an addition to the installation manual that explains concepts, measurements and the configuration in detail. Also, for the Goblin-SPST and the Goblin-EXP exist detailed explanations which can also be useful for other pedals.

I am a manufacturer of effects devices and would like to integrate MIDI functionality into my products. Is there a version that is suitable for this?

The Goblin-3PDT is ideal for this because its connections are arranged in a 2.54 mm grid and therefore suitable for conventional pin header. Because of that there is no wiring, the Goblin-3PDT is simply plugged onto the circuit board.

I am a manufacturer of effects devices and would like to integrate MIDI functionality into my products, but would like to design my own hardware. Is that possible?

Yes, it is possible to only order the preprogrammed microcontroller. Hardware design support and commissioning support included.

Garbage Collector

Can the Garbage Collector also be used as a channel switch on my amp?

Yes. But be careful with the voltage levels. With modern amps it should be no problem. As long as +5V are not exceeded there are no problems.
Vintage Amps on the other hand often have AC with more than 5V on the channel switch. Prior to version 2.1, there was a small modification necessary for this. Since 2.1 there is a switch for every port on the inside, to disable the expression function and disconnect GND from the Jack. Then the port is able to switch +-60V.

Is the Garbage Collector compatible with each expression input?

The Garbage Collector is compatible with almost every expression input. The exception are expression inputs with more than 5V, which I have not yet encountered.