Frequency response of the potential 10 band equalizer. There are a total of four graph in this figure. One showing each of the bands being changed while the other two remain set flat, and the fourth one showing all three bands being varied simultaneously. As with other graphs on this page there are 5 lines showing, full boost, half boost, flat, half cut, and full cut. The flat line goes across the graph unchanged at minus 3 dB. The 5 lines begin at 10 cycles having the following values. Minus 2, minus 2.5, minus 3, minus 3.5, and minus 4 dB. The boost lines rise and fall forming a bell shaped curve. The cut lines fall and rise forming the mirror image of the boost curves. The curves peak at 28 cycles and have the following values. 3.3 dB, 0 dB, minus 3 dB, minus 6.3 dB, and minus 10.5 dB. The 3 dB down points are at about 20 and 40 cycles. Between cut and boost bands the lines do not return to zero. The values between bands are, minus 1.5, minus 2.25, minus 3, minus 3.75, and minus 4.5. On this graph the frequencies where the other bands are set flat, the full boost and full cut lines get about 0.3 dB closer to minus 3 dB. On the second graph all 5 lines begin as one at minus 3 dB. They separate at 300 cycles and form the same bell shaped curves as above. The peaks are at about 2.3 kc and have the values, 2.8, minus 0.2, minus 3, minus 6, and minus 9.75. Above the band the lines remain separated as in the first graph. In the third graph the lines begin merged, and separate by the width of a line at about 730 cycles and recombine at 3.5 kc. The separate again at 4 kc and form the same bell shaped curve as the other two graphs. They reach their peaks at 20 kc and have the values, 2 dB, minus 1 dB, minus 3 dB, minus 5.5 dB, and minus 9.5 dB. In the fourth graph all three peaks and cuts are showing. The first on forms its peak and the lines do not merge again but remain separate until the second peak and then the third. All values are the same as described in the individual graphs. End verbal description.
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