Yamaha DX7 IIFD - serviced - with Grey Matter E! upgrade

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"Since you're looking, you know what this is already, so I won't bore you with the details. Yes, it's a DX7, and it's the top-end 16-bit, 16-voice bi-timbral version, so what's so different about this one? Let's see ....

DX7 II fd, with a floppy drive that actually works! They never do 😁
Includes the famous Grey Matter E! extension card, greatly extending its usefulness
Version 1.2 E! firmware, the latest revision
Brand-new battery fitted
Recently professionally serviced and calibrated (such that you can with a DX7)
Factory patches loaded
Grey Matter E! demo diskette and E! patches/performances included"