by vermis_rex » Tue Nov 14, 2006 12:30 am
Or you could think of it this way...
The non-Ultra models are Generation 1 of the Emulator 4 model range.
The Ultra models are Generation 2... which runs 50% faster hardware (so if you want to really mangle your samples, it will take less time), it allows IDE internal hard-drives (instead of just SCSI... which seem to be harder to find, among other problems), and has more RAM for the OS and presets.
You start with the Emulator IV (Gen1 only). This became the E-IV rack, which had a little brother e64. These gave way to the e4, which could be upgraded to the e4-XT. Consider this the top of the line. Full sampler RAM, all the additinal I/O upgrades (8 additional out, AES digital, 4 extra ins (I think), extra MIDI ports, etc).
Now, not everyone can afford the top of the line, fully tricked out Porche. So E-mu introduced the "build-as-you-go" model, the e6400. Same basic hardware, but without all the cool extras, so you can add them as you can afford them (or as you find you actually need them).
Later, E-mu revised the main board hardware and such, and Generation2 was born as the Ultra series. Though not labled as such, the previous generation became known as "classic" (hence, you'll find people talk about an e6400 classic vs. an e6400 Ultra).
And here things get complicated. You could, at the time, upgrade the system flash RAM in your classic, which would allow you to install and run the OS for the Ultra and get almost all the same features (I have no idea what was changed, other than adding "Beat Munging" to the sample edit tools... lets you chop up loops and play just selected beats). It doesn't get you the full amount of system RAM of an Ultra, so some really large banks might not load because of "preset full" errors (well, that's my experience).
Then E-mu decided that having the e6400-Ultra wasn't quite getting them the "budget studio" crowd, so they introduced the e5000-Ultra. Slightly better base specs than the e6400, but couldn't be upgraded nearly as far.
The situation with FX is also a bit complicated. The original classic e6400 didn't have an FX board, but one could be added. When the Ultra model was introduced, what was the basic FX board became standard, but you could now upgrade any of your Ultra systems with the spanky new RFX-32 card... which turned out to not be nearly as popular as E-mu had hoped. There were some software issues, among other things.
And software is sort of where you end up. Classic models without the flash RAM upgrade can't run the 4.0 series EOS. Classics with the flash upgrade can, as can all of the Ultra models. The last "official" stable release that will run on the Classic models is EOS 4.62. There is a 4.7 "beta", but as far as I know it will only run on the Ultra line. It adds one major feature: the ability to address FAT formatted hard-drives. This makes sharing data with the PC world much easier, and allows you to use a much larger internal hard drive (the basic EOS file system is limited to a maximum 18Gb). It also adds several problems if you have the RFX-32 card installed, like random blasts of noise (or so I've read... I don't have the card myself).
And since it's somewhere around here than E-mu lost interest in hardware samplers, they never bothered to tidy up the code. If you have an Ultra, you have a choice: EOS 4.7 for the FAT compatability and ditch the RFX, or EOS 4.62 for the stable RFX and forgoe FAT drives.
There... simple enough?