I've used these in a few jobs recently. A whole house audio system and two surround systems with 5 in ceiling speakers. They have enclosures and are also ported out the front. Noticeably better misbass response than others I've used and less leakage of sound to the room above. I attribute this not only to the enclosure but likely also because of the ports allowing some of the energy to exit the enclosure from the front.

I am very pleased with the sound.

Craig.