Encore Electronics

Expressionist
You don't need any special hardware to upgrade the firmware because it's in Flash ROM! All you need to do is download this file, and "play" it into the Expressionist with aMIDIsequencer or utility such as MIDIOX. Remember to enable SYSEX on the Expressionist, or nothing will happen.

Product: Expressionist	Updated:	What's New:
Version 1.11 .SYX file	February 15, 1998	What's new
Version 1.11 .MID file
Version 1.13 .SYX file	June 15, 2004	What's new
Version 1.13 .MID file
Version 1.16 .SYX file	May 21, 2016	What's new

Need a MIDI file player?

Check out this link for Windows, MAC, Atari and Amiga

SYX File Programs

Knobby/Slidemate Editor

Product:	Updated:	What's new:	Platform
KnobbyEd	November 9, 2002	What's new	PC

Product:	Updated:	What's new:	Platform
MacKnobbyEd	March 16, 2002	Beta 4	Mac

You can also download the Knobby/Slidemate Configuration Files from here, or the Knobby/Slidemate Library Files from here.

MIDI Retrofits - Flash based

Newer retrofits are designed using FLASH ROM, so they can be updated without opening the instrument. Currently the OBXa is our only one in this catagory. The update is supplied as a standard MIDI file and can be played by any general purpose MIDI player.

Depending on your browser, you might have to right click in the Product column and choose save to file. (as opposed to opening it in media player or quicktime and having it sent to your speakers, accomplishing nothing)

Click on "What's new" to find out the changes from previous versions.

The two OBXa versions are functionally the same. We sometimes supply a processor labeled Z80 RAM80, and it requires slightly modified code for the cassette input to work. Only download the version that matches your processor. You'll know you got the wrong one if the cassette function stops working.

Product:	Updated:	What's new

Oberheim OBXa Version 1.2 (Z80 RAM80)	August 3, 2014	What's new
Oberheim OBXa Version 1.2	July 14, 2014	What's new

MIDI Retrofits - Eprom based
If you have access to an EPROM programmer, you may update aMIDIkit with the code on this page. These files are in ZIP format. After you download a file, unzip it and you will have an Intel hex file, suitable for programming a newROM.

If you do not have this capability, you may send a check for $30 US, and we will mail you a preprogramedROM.

Click on "What's new" to find out the changes from previous versions.

Product:	Updated:	What's new:	EPROM Version:
Roland JP8 Version 5.1	October 17, 1994	What's new	27128
Moog Source Version 4.11	May 12, 2014	What's new	2764
Oberheim OB8 Version C2	July 7, 1997	What's new	27256