Vibrating speakers


On another thread just now was a post by Geoff Kait

geoffkait
21,280 posts
04-18-2020 3:45pm
+1

“The only good vibration is one that’s dead.” - Shannon Dickson

Yes, I know what some of you are thinking, “but speakers are like musical instruments. They’re supposed to vibrate!”

Is this so - are speakers supposed to vibrate? I thought it was just the drivers, and the speaker shouldn't.
Or am I missing something?
Hence I use Townsend Podiums for main speakers regardless of floor type
tatyana69
I broke two laws of physics today and it’s not even time for breakfast. Don’t let some stuffy old physics dudes tell you what you can or cannot do. Faint heart ne’er won fair maiden. 💃
4 stupid questions from me then

Why have a cabinet? - just suspend drivers along an inert pole. Is that what you mean by an open baffle, but is planar totally open? (I have no idea what planar is in this context, do we need any planar aspect anyway)

Surely the other drivers vibrate from the other drivers more than confusion from a box - so what happens there? It's all relative

Why are speakers/drivers in one speaker box? Why not have 3 or 4 or more boxes?

So a concrete floor is just as much a vibration issue as a wooden floor as the speaker will still vibrate the same, presumably ?
Don't listen , the loudspeakers is not like instrument , is totally different .just marketing trick. the vibrate very very small and under control by good manufacturers, most of manufacturers use very hard material . 
As popularized in song not all vibrations are bad. Some are good. Some are really good.😉