Hi.

Why wait for the manual- you can download it right here:
http://win.ketron.it/manuali/manualeAudyaEng.zip

And here you can download the specs for the sound upgrade:
http://www.ketron.it/images/ketron/manualiPdf/AudyaNewSound&Other.pdf

With regards to the new VCE functionality - it is not something you can switch on/off, it is merely built into some of the voices.