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20W Surround audio amplifier with SI-1020G

IC amplifier surroundHave you been use the IC above? if those who have not, IC above is used or applied to the audio power amplifier. IC processing is quite good for use on amplifier home, or room. IC used is SI1020G who have not very high output with only 20W 8 ohm impedance speakers. Supply voltage ranging from 12 volt to 23 volts.

Below schematic audio amplifier with IC SI1020G
surround audio amplifier
Part List
R1 = 100K
R2 = 1R
C1 = 2u2F
C2 = 100uF
C3 = 47uF
C4 = 10uF
C5 = 2200uF
C6 = 47uF
C7 = 100uF 

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