joined by the E4K, essentially an E64 with a 76-key weighted keyboard - although it could be expanded to 128 voices and 128MB of memory - like the later e6400. A second series of rackmount EIV was launched in 1996, with the E4X Turbo being the new 128-voice flagship model. The E4X (without Turbo) and e6400 offered only 64 voices and fewer options once again to meet lower price points - although unlike the e64 it was fully upgradable. In this time frame e-mu released the E-Synth in both rack and keyboard form, these models including a 16MB sound ROM, and an optional additional 16MB "Dance" sound ROM, installed at the factory which offered musicians an instant sound set as soon as the instrument booted up (unlike other hardware samplers which required a hard disk or CD-ROM to load content after booting). The final EIV samplers all have the "Ultra" designation. The Ultra samplers featured a very fast processor and upgraded analog output stages, and the ability to install the RFX dedicated high-quality effects processor. The entry-level model in this series was the E5000 Ultra, which was limited to four output jacks, could not accept the voice upgrade, and was unable to write sound ROMs. The E6400 Ultra (now with a capital "E") was a stripped down model but had full upgradability, the E-Synth Ultra refined the previous E-Synth offerings with one or two new 16MB sound ROMs, and the E4XT Ultra was the top-of-the-line model with the full 128 voices, digital audio inputs and outputs, 32 MIDI channels, and an ASCII keyboard input for remote control. The final Ultra sampler was fully loaded with the RFX effects card and every option, and was called the E4 Platinum. The EIV series was discontinued in 2002. Notable players The following musicians have played an E-mu Emulator series sampler in their recordings: ABC David Bowie Matthew Broderick (as Ferris Bueller) used an Emulator to play samples of coughing in Ferris Bueller's Day Off Daft Punk used the ESI-32 sampler for their first few singles and their studio album Homework Depeche Mode used Emulators I, II, and III in studio recordings and in live performances Enya Front 242 Genesis used Emulators I, II, and III Philip Glass Herbie Hancock Jean-Michel Jarre used an Emulator on Zoolook and Revolutions, and an Emulator II in Rendez-Vous. Kitaro Paul McCartney Mr. Mister used an Emulator II