The smiley face doesn't make your post any more viable or correct. A speaker just sitting there, unconnected, does not create "sound" of any appreciable level, and I have a feeling it would be almost impossible to detect short of being in super quiet anechoic chamber. It won't say no sound, because anything above absolute 0 must "radiate", and the resistance of the voice coils will have thermal noise .... and that is just ridiculously pedantic. If you want to be ridiculously pedantic, a glossy finish would reflect as opposed to absorb ambient "noise" and hence in a real world situation, a gloss finish is likely to result in worse signal to noise.
What's that saying, exceptional claims require exceptional evidence? Accepting it as true without being critical just encourages bad behavior. I mean really, look at the people in this thread jumping through hoops trying to justify their statement as correct as opposed to saying, where is your proof, evidence, or even justification. Frankly that is silly. This isn't about feelings, this is about the physical world.