Ahh, you're confusing and conflating several related yet different things. Yes the speaker vibrates. That's what we hear- vibrations. But there's really only one part of the speaker we want to hear vibrating: the cone.
But playing music the cone goes in and out, which causes the whole speaker cabinet to vibrate opposite that. The speaker is a lot more massive and so it moves less but it still moves some and to the extent it moves it sucks the dynamics and life out of the music. This is one part of why physically bigger more massive speakers project a bigger more lifelike sound.
But its not just the whole speaker cabinet vibrating back and forth. Driver vibrations travel all through the whole speaker cabinet causing every single part to vibrate. All the wires and crossover parts, all the side front and bracing, all of it. None of which we want to hear. All we want to hear is the cone. But even the cone itself is resonating and vibrating in ways we do not want to hear.
So its all vibrations, only some of which we want. Kind of like the posts around here. You just need to figure out which are signal and whose are noise.
But playing music the cone goes in and out, which causes the whole speaker cabinet to vibrate opposite that. The speaker is a lot more massive and so it moves less but it still moves some and to the extent it moves it sucks the dynamics and life out of the music. This is one part of why physically bigger more massive speakers project a bigger more lifelike sound.
But its not just the whole speaker cabinet vibrating back and forth. Driver vibrations travel all through the whole speaker cabinet causing every single part to vibrate. All the wires and crossover parts, all the side front and bracing, all of it. None of which we want to hear. All we want to hear is the cone. But even the cone itself is resonating and vibrating in ways we do not want to hear.
So its all vibrations, only some of which we want. Kind of like the posts around here. You just need to figure out which are signal and whose are noise.