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I am facing the problems regarding INPUT and POWER connection on LA 4440 IC PCB side. It is an Indian PCB and company is Monty. Please help me to solve it.
What DC voltage and current did you power the amplifier with?
What is your signal source? A microphone might need a preamp.
What is the impedance of your speakers?
Please describe the noise. Distortion, high frequency hiss or low frequency hum?
Did you build this kit? The soldering is poor, is it lead-free solder or it has no flux?
Make sure that you use capacitors at the inputs. Maybe 4.7 uF / 25 V with the positive side into the amplifier. This should have been wired up by the supplier.
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