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tda1521 produced 2.1 computer subwoofer speaker circuit diag

2014-11-10 13:24  
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tda1521 produced 2.1 computer subwoofer speaker circuit diagram
This circuit uses a tda1521 as a two-channel power amplifier, and another tda1521 btl output is used as subwoofer amplifier. ic1 and ic2 may use the ne5532, jrc4558 or tl082. You can also use other high-end op amp such as op275, lt1057, opa2604, etc. But for computer speaker, the ordinary op put is enough.