Axiom Home Page Forums General Discussion Technical Questions Axiom and time coherent design?

Wouldn't hurt, although the article is pretty long and wordy.

Time-coherent design is actually even simpler than you guessed. With a tweeter, the cone is small and pretty much level with the front of the speaker. With a woofer, the cone goes in a couple of inches (more with a big woofer) so the sound takes a tiny bit longer to get to your ears. Time coherent design is just about making the drivers line up so they are the same distance from your ears.

I believe there is a tiny difference in speed of sound depending on frequency but it is REALLY tiny if it exists at all.