I agree that designing a ducted speaker baffle is way beyond the abilities of 99.9% of the folks here, including me, I have seen some amazing examples of very small speakers and baffles with outstanding audio output. If you look at some of the higher end laptops, they have some amazing technology in the speakers. I have some that actually do have ports, and they produce surprisingly good sound for such a small speaker, far in excess of what you'd expect. The arrow points to the port on these.
