Integrated MIDI Organ Controller

IMOC for lighted stop/draw knob organs! (only)

Artisan Instruments, Inc. is proud to present our latest product, the Integrated MIDI Organ Controller. Here, in one control board, you get all the function control you need for:

   1. Up to four manuals input accepted and built in pedalboard inputs for a 32 note pedalboard.

   2. Up to three expression pedals and one crescendo pedal.

   3. Up to 64 pistons, Memory Level Control, and Transposer Control.

   4. Up to 64 lighted stops or drawknob control including couplers.

   5. A fully functioning combination action with up to 99 memory levels.

   6. Four individual MIDI out ports for sequencer, MIDI monitor, multiple sound engines, or even real pipes.

                  Price: See Pricing Guide Page

This is pretty much everything you need for your virtual pipe organ. Keyboard input may come from individual HV64 input boards for raw pipe organ keyboards, Fatar multiplex keyboards with the Artisan encoder board, or existing MIDI keyboards. The choice is yours. (NOTE: all keyboard hardware is additional.)

Add a power supply and lighted stop control of your choice and you are ready to control the digital organ samples of your choice. Of course we would appreciate that choice to be the Artisan Sound Engine with our own library of highest quality digital samples for classical or theater organs.

Wiring and Using the Artisan IMOC Board

The IMOC Board at First Glance (Prologue)

Orient the board so that Integrated MIDI Organ Controller and Artisan Instruments reads correctly in the center of the board.

To the left side of the board you will find the stop light power and commons at the top

Next you will find the 5 volt power and ground followed by the 4 analog inputs.

Directly below the terminal strip for the Analog Inputs is a MIDI IN connector that is used when the MIDI Interface Cable is used for downloading a Configuration File (.ucf extension [uMIDI Configuration File]).

On the right side of the board you will find 4 parallel MIDI OUT plugs and a ground common connection for the pistons and pedal board.

Connecting the Keyboards

¾ the way down the board and 1/3 the way over toward the right you will find the ASPI data connector which looks like a modular phone jack. This is where you will connect the data cable from the HV64 input boards or the Fatar multiplex boards attached to keyboards.

The keyboards are connected to the ASPI plug in the following order:

Keyboard 1  (usually GREAT)

Keyboard 2 (usually SWELL or ACCOMPANIMENT)

Keyboard 3 (usually CHOIR or SOLO)

Keyboard 4 (usually BOMBARDE)

Across the bottom of the board (reading from right to left) you will find the 96 terminals to be used for the pedal board inputs and the piston inputs along with the inputs for the memory levels and transposer as follows:

Connecting the Pedalboard

Terminals 1-32 are the inputs for the pedal board contacts. The common for those contacts is wired to the Ground terminal at the far right. Low C is terminal 1

Connecting the Miscellaneous Inputs

Terminal 33 is for your SET piston

Terminal 34 is for your MAP piston

Terminals 35 through 64 are set up to be pistons

Terminals 65 through 76 are set up to be memory levels (from a rotary switch)

Terminals 77 through 88 are set up to be transposer levels (from a rotary switch)

Terminals 89 through 96 are set up to be additional pistons or toe studs as desired.

Connecting Lighted Stops (Rocker Tabs or Draw Knobs)

The two rows of terminals at the top of the board (reading left to right) are the inputs for your lighted stops and the outputs to drive the stop lamps. It is imperative that you wire the stop switch to the top row, and in the exact same order wire the corresponding stop lamp to the lower row. Again, it is imperative that you wire stop switch 1 to terminal 1 on the top row, and wire stop lamp 1 to terminal 1 on the lower row.

Next, connect your stop switch common to the GND terminal to the left of the stop inputs.

Connect the stop lamp power to the +VIN terminal.

Connect the common of the lamps to the +VOUT terminal.

Analog Inputs (Swell Shoes w/Potentiometers)

Finally, connect the analog inputs to the appropriate terminal and the 5 volt power to the GND and +5V on the middle terminal strip to the left of the board.

Up to 4 Swell Shoes can be connected, with the wiper terminal of the potentiometer connected to A1 through A4.

Applying Power to the System

Recheck ALL power and ground connections before turning on the power supplies (5V and +V).

When you turn on the 5 volt power you will see that there are 4 small led lights that will begin to flash on the board. These indicate that the board is ready for use.


The keyboard names of course will not be standard from one organ to the next but the order of the keyboards should be as above generally.

The IMOC board can be reconfigured for many different configurations so if you need something different than the default configuration described here you can edit and download a new config file to the IMOC board at any time.

For more assistance email or call Technical Support -


IMOC!!  (Integrated MIDI Organ Controller)