Phase and time alligned speakers

Preservation of coherent properties of the sound field, specifically phase and time, is a design goal for many speakers. I conclude, therefore, that the less dispersion the signal sees along its path, the better the speakers will sound.

I am looking for an understanding of what properties electronics and cable should have in order to maximize the benefits of phase and time alligned speaker designs. The above is my own first attempt to think the problem through.

Thanks.