A friend get it, we try it together but it sound really flat except if u put a lot of FXs after. This kind of sound module are really too little in terms of waveforms, it can't fight against big sound bank. I use this kind of sound to layer a sample ( string pad or piano chords) and it must fit right in the mix. Hypersonic is really poor like edirol's plugs.
It may sound good if you use only this sound module on your track .
The solution i've found : Kontakt Sound Bank .