Disklavier

Another idea is hooking up the DKC-850 in the "add-on" configuration.  I've found this to be the best of both worlds.  I get all the cool features of the DKC-850 (except Disklavier Radio) plus the XG and later controller units have a much better sound card/sampled sound quality, and I have the ability to play native Disklavier PRO music files.  

Plus I preserve the floppy disk drive in this configuration if I need it and as stated below, diagnostics and calibration are a snap.  

If I do want DK radio or future potential live-broadcast options (when new DKC-850 firmware updates appear), it's an easy cable swap and one setting on the DKC-850 menu and I'm up and running.  

I keep the controller units in a small furniture box out of site but within easy reach of the piano, keeping the look very much stock-grand piano like.