Acoustical characteristics of rooms or other environments in which audio systems operate may be improved by equalization derived from measures of relative acoustic energy storage of the audio system such as a Relative Acoustic-energy Decay Spectrum. During a mission, enemy force movements can be compared to the predictions. The preformed composite laminate continues to be pulled into an automatic 3-dimensional Z-axis fiber deposition machine that deposits groupings of fiber filaments at multiple locations normal to the plane of the composite laminate structure and cuts each individual grouping such that a extension of each grouping of fiber filaments remains above the upper skin and below the lower skin. The same material is used to form a male mold in the cavity left in the female mold when the ear impression has been removed.