I made an amp in my class that takes an mp3 player input and amplifies it to 2 speakers one for left and one for right.
The amplifier chips are 2 TDA2005's and I hooked up a transformer to take my wall voltage down to 12 volts, then rectify it, then filter it with a 1000uF capacitor. Then on to the circuit itself.
And my problem is that the amp buzzes when I turn it on with or without music. Does anyone know what might be the issue here or some common causes? I know I haven't posted a schematic or anything but any common causes would be great.
edit: okay I think the problem might be that Im giving it 12v and the speaker impedance is only 6 ohms. The transformer is rated at 12v 1amp so could this be a problem? I think the amplifier needs more than 1 amp am I right?