Brand N/A Model TDA2030A Quantity 1 Color Green Material PBC Features This power amplifier kit is made of DA2030A integrated circuit; Small distortion Easy to assemble great power etc. Specification Input voltage: AC18V DC24V; Output power: Po15W 15W (RL=4ohm); Output impedance: 4~8ohm. Application DIY study English Manual/Spec No Other This power amplifier kit is made of DA2030A integrated circuit; Small distortion Easy to assemble great power etc. Suitable for students and fancier DIY; With D1D4 rectifier diode C11 filter capacitor C12 high frequency decoupling capacitor RP1 volume potentiometer; IC1IC2 integrated circuit; R1R2R3C2R7R8R9C7is input bias circuit; As for this board is single power supply IC input AC voltage is 1/2; R4R5C3R10R11C8form the negative feedback loop feedback factor changes with the change of R4R10;R4R10is input coupling capacitorC4C9is output coupling capacitanceR6C5R12C10 can ensure high frequency stability; SIGNAL FIOW: audio signal from X1 to volume potentiometer RP1 from C1C6to IC1IC2 from integrated circuit to 4 from C4C9to X2; Input voltage: AC18V DC24V; Output power: Po15W 15W (RL=4ohm); Output impedance: 4~8ohm. Packing List 1 x Amplifier board module