High Quality Dual Channel Mega Bass Circuit

Published:2011/7/15 1:40:00 Author:Joyce | Keyword: High Quality , Dual Channel, Mega Bass | From:SeekIC

Principle of the circuit: After the input signal goes through low pass processing with changing slope of 24 db/oc by a four-order low pass filter composed of IC1-1 and other peripheral components (fc = 70 Hz, A = 8.2 db in the circuit), it is buffered and amplified for 10 times by the inverting AC amplifier which is IC2-1 centered before it is output. Low frequency signals which have been greatly enhanced and the original signals will be sent to IC2-3 through C4, C3 respectively to be mixed, and the mixed signals will be output via C5. W controls the mixing amount of low frequency signals and original signals. In order to guarantee the output signals through C5 are authentic when W is shut up, its gain at this stage is set to be 0 dB.



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