I haven't seen it formally applied to music making in a practical way, but the basic aural principle to which the series refers more precisely, is that the lower the notes, the farther they have to be apart intervallically for it to sound right (i.e., not dissonant).
Play a C major triad in root position, built on middle C, then play the same chord two octaves lower, and you'll hear what I mean. Once you get lower than around the second A below middle C, anything smaller than a perfect fourth sounds yucky.