Now you've gone and changed the comparison... you are now talking sealed vs ported, not small vs large. None of the three links you provided before were a sealed box so I do not know where that even came into your discussion.
A ported enclosure is inherently more efficient than a sealed enclosure. As a result, it is capable of being louder with the same input.
A small ported enclosure can be louder than a large sealed enclosure (again, depending on the characteristics of the driver used), so your small vs large argument still falls apart.
Just give it up, will ya? I have the laws of physics on my side.
A ported enclosure is inherently more efficient than a sealed enclosure. As a result, it is capable of being louder with the same input.
A small ported enclosure can be louder than a large sealed enclosure (again, depending on the characteristics of the driver used), so your small vs large argument still falls apart.
Just give it up, will ya? I have the laws of physics on my side.