Electroslacker,
I concur with your comments. I've never heard glass cabinet speakers before and this experience totally changes the misconception that glass is supposed to ring. I'm not a glass expert, but I know that glass as material can have many different levels is rigidity. I'm almost certain that the glass the use in the Waterfall speakers is more inert than the one we are used to see in home windows and table tops. The glass that is used in skyscrapers, for instance, is a totally different type of glass. This glass should be able to handle extreme wind forces and building vibrations without ringing or breaking. Based on the sound in this room, they for sure did their research before releasing their speakers to the market.
As for the Vivid speakers. I totally agree: that room was simply way to small for the potential of these speakers. Furthermore, all those rooms in that area were being swamped by what appeared to be a very loud transformer or an A/C compressor noise coming from outside. You could easily hear the outside rumble noise when music was not playing. This forced them to play louder than what they would normally do so to compensate for the outside noise.
BTW, all the rooms in that area were affected by this phenomenon and therefore did not sound any better either. The only rooms with great sound were the larger ones that were on the opposite side.
Let's keep in mind also, that as far as I know, the Mola Mola amps shown are still prototypes. I was told that the DAC and Phono modules for the preamp are supposed to be released in June. So perhaps then, we'll see the final versions of the Mola Mola system.
Rhapsody Music & Cinema is in NY, so I may listen to the Mola Mola amps in a more controlled environment in the future.