- The Mark IV and Mark IV PRO are no longer in production. However, both are being supported by Yamaha. The operating systems of these pianos will continue to be updated with new capabilities.
- E3 and E3 PRO pianos are what are currently being produced by Yamaha.
- Very recently Yamaha introduced a new series of acoustic grand pianos called the CX series. These acoustic models begin with C1X and go through C7X. This CX series is using much of the same technology that is being used to produce Yamaha's flagship CFX Concert Grand Piano. The new CX series is a considerable improvement over earlier C series grand pianos. So, any Disklavier with an X in the model name is in one of the new CX series grand pianos.
- In the United States, Yamaha is now selling both the E3 and E3 PRO instruments. For the last few years Yamaha offered the E3 in 5'8" grand pianos and smaller. These pianos did not have the Silent system. Now, all Disklavier E3 grands other than the DGB1KE3 and the DGB1KE3 Classic have the Silent system. The DU1E3 Upright piano does NOT have the Silent system.
- In the United States, Yamaha is now selling both the E3 and E3 PRO instruments. For the last few years Yamaha offered the E3 in 5'8" grand pianos and smaller. These pianos did not have the Silent system. Now, all Disklavier E3 grands other than the DGB1KE3 and the DGB1KE3 Classic have the Silent system. The DU1E3 Upright piano does NOT have the Silent system.
- 5'8" and smaller E3 Grands without Silent systems are models: DGB1KE3, DGB1KE3 Classic, DGC1ME3, DGC2E3, DC1E3, DC2E3
- 5'8" and smaller E3 grand pianos with Silent systems are: DGC1E3S, DGC2E3S, DC1XE3S, DC2XE3S
- All Disklavier E3 grands 6'1" and larger are E3 PRO systems. These models (with Silent systems) are: DC3XE3PRO, DC5XE3PRO, DC6XE3PRO, DC7XE3PRO, DS4E3PRO, DS6E3PRO, and DCFXE3PRO
- The DU1E3 is the only E3 upright piano offered at this time.
I hope this information helps a bit...
Bill Brandom