The DKC500RWXG is the Mark II XG PRO controller associated with the MX1Z. It records and plays both Standard MIDI Files and older E-SEQ songs, using internal storage or floppy disks.
At a Glance
- Generation
- Mark II XG PRO controller
- Associated Models
-
Mark II XG PROMX1Z
- Uses
-
Internal Storage2DD floppy2HD floppy
- Recording
-
E-SEQSMF0
- Plays
-
E-SEQSMF0SMF1
- PianoSoft Types
-
SoloPlus
- Upgrade Options
-
MIDI/app playbackBluetooth MIDIAnalog/audio accompanimentDCD-1Yamaha controller upgradesDKC-850Media/storage replacementNalbantov
- Bluetooth MIDI Apps
Things to Know
If replacing the floppy disk drive, use my Nalbantov model guide to select the proprietary slim version made for this controller.
On a PRO piano, XP performance data is stored inside the SMF0 file. Mark II XG PRO captures key/hammer velocity at 0–1023 resolution and pedals at 0–127, beyond ordinary MIDI resolution.
A DKC-850 can replace this controller, but the installation requires the correct model-specific harness—not an ordinary VGA cable. My DKC-850 conversion-cable guide explains the original Yamaha cable and the replacement adapters made by Richie Hayes. On a PRO piano, the replacement operates in STANDARD mode and does not preserve PRO/XP recording.
If a computer reports an original Yamaha Disklavier floppy as unformatted, do not format it. My Disklavier floppy-recovery guide explains why this happens, and my tested USB floppy-drive guide identifies hardware that can read 720 KB/2DD disks.


