Figure 4.6. As indicated in the text the bass and treble curves have been moved outward. That is the bass curves have been moved lower in frequency and the treble curves moved higher. At 10 Hz the values of the 5 curves are, -14, -6, 0, 6, and 14. At 100 khz the curves have these values. -15, -6, 0, 6, and 15 dB. As frequency increases the 5 curves merge together at 490 Hz. They emerge as 3 lines at 2400 Hz with the half and max lines together. At 9.5 kHz both sets of half and max lines separate. On toward 100 kHz all 5 lines get farther apart. End verbal description.
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