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
	Need a MIDI file player? Check out these sites for Windows, DOS, MAC, Amiga, and others. Harmony Central 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 play. 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. Product: Updated: What's new Oberheim OBXa Version 1.1 February 28, 2009 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 4.10   July 7, 2008  What's new   2532 Oberheim OB8 Version C2 July 7, 1997 What's new 27256