See this circuit below: Datasheet IC TDA2004 Vcc = 8-18 V Pout = 2X 12 W RL = 2 Ohm Ft = 20hz - 20Khz Icco = 65 mA Package = SIP1-11 Manufactered = SGS-ATES Other IC TDA2004 , In this circuit you can use the following IC : A2000V A2005V TDA2005 TDA2005M MPC2005 Or you can call Persamaan IC TDA2004