Edit: Lesson learned: You entered manual mode, and the programing controls were enabled.
Concerning top-end: I guess it's something to something on the frequency spectrum that the sound is produced (Jupiter 8V has a lower sounding frequency than the real deal). Some of the strings sound more like Juno 60 or 106 strings, and not like the jupiter 8 as heard in the Nori Ubukata video.
