Speaker cabinets do more than create a known volume in which a driver will optimally operate; it also introduces resonances to the speaker that can easily influence its sound. Changing the shape of a cabinet can help control the internal resonances especially by eliminating parallel walls in its design. Adding internal sound damping can reduce effects of remaining natural resonances by moving them off of a musical note or totally eliminating them entirely.
There is one more issue regarding cabinet design we will explore in Part 4 of this series.
Related ArticlesSee all entries about speaker enclosures in Part 1, Part 2, Part 3, and Part 4. Also, a related article on the effects of crossover network components on driver performance.