Published:2009-7-10 6:10:00 Author:May | From:SeekIC
Addition of midrange tone control to active bass and treble control gives greater control flexibility. Center frequency of midrange control is determined by C4 and C5 and is 1 kHz for values shown. C5 should have 5 times value of C4.-“Audio Handbook,” National Semiconductor, Santa Clara, CA, 1977, p 2-40-2-49.
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