I demoed the HK Audio Nano Pa system at Uncle Dave's studio last nite after my Philly gig,.....a very versatile STEREO unit for sure,...very lightweight, compact, well designed, good sound for small gigs,........
I was more impressed with the HK Nano then the S950,.......
Truthfully the Audio drums were a disconnected sounding over reverbed disappointment,......Black on Black button color contrast & positioning a difficult navigational design for live players,.....speakers were improved, key-feel no change, VH2 is a mild improvement somewhat over the previous VH1 which I never liked,, but in no way is it in the same sound & tracking caliber or quality as the TC Helicon units,that said it's just another S910 with a good suntan!

...lol