Figure 6.2. Overview. All 5 lines start far apart at 10 hz. As frequency increases they get closer together, slowly at first and then more rapidly. When they get quite close they come together more slowly again. They merge into a single line and then diverge again. Moving apart slowly at first then more rapidly and slowly again as they approach 100 kHz.

Numerical values. I will give the Values in dB for the following frequencies. 10, 20, 50, 100, 200, 500, 1k, 2k, 5k, 10k, 20k, 50k, and 100 kHz. I will state only the values. It is up to the reader to keep track of the frequency for each point as it is given.

Starting out with the green line which represents both controls set to max cut. Starting at 10 Hz the values are,
-15.5, -15, -13.5, -10.5, -6.5, -2, -1, -2, -6, -10.5, -13, -14.5, -15.

Blue line. Both bass and treble set to half cut. Once again starting at 10 Hz.
-7, -7, -6.5, -5.5, -3.5, -1.5, -1, -1.5, -6, -10, -13, -15, -15.

Red line. Both bass and treble set to flat. This line is at -1 dB throughout the frequency range.

Light Blue line. Both bass and treble set to half boost. Once again starting at 10 Hz.
5, 5, 4.5, 4, 2, 0, -1, 0, 1.5, 3.5, 4, 4.5, 4.

Purple line. Both bass and treble set to max boost. Once again starting at 10 Hz.
13.5, 13, 12, 9, 4.5, 0.5, -0.5, 0.5, 4, 8, 11, 12, 11.

Different circuits will produce different numbers but the shape of the curves will be the same. For other circuits you have been and will be given the values at 10 Hz and 100 kHz. For figure 6.1 the values will be so close that the difference won't make any difference.

End verbal description.
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