This is the reissue of the E! board by Grey Matter Reponse for the original (brown case) Yamaha DX7 synthesizer.  It adds a 320-patch ROM library, performance settings for each patch, 128 user patch memories and upgraded operating system.  The RE! was originally manufactured in 1999 but all units are "new old stock" and have been tested.  The RE! kit includes the RE! board, spacer and metric threaded bolt,  Some end-user soldering is required (two connections).  More information is available at http://www.oldcrows.net/~oldcrow/synth/yamaha/E/

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