Nice choice for the audio. This will give a nice "spread out" sound, which is often a problem in (game)rooms where there is too much volume near the speakers and too little when far away from them...
100V systems are also used for really big buildings (larger than 10000m2) as an evacuation system.
LOL about the chimes, you_MUST_ connect a microphone so you can announce it when dinner is ready

Too bad you didn't demo any music though !?!?
The Visaton speaker (in this version) would sound really really poor because there is no box around it.
Apart from that, they look to be from the same manufacturer ?
I have upgraded the standard speaker in my Atari Lynx I to a Visaton speaker and it sounds GREAT