Figure 2.35 Spectral crossover alignment example:
(a) Individual responses of two-way loudspeaker. Note
the convergence of the phase traces around the spectral
acoustic crossover point of 900 Hz. (b) The combined
response of the same speakers shows a coupling zone
transition to isolation without combing. The crossover
progression shown here is found in the third tier of the
pyramid shown in Fig. 2.26
(a)
(b