Yes, I have read the datasheet because I've already built the amp and it's working fine. The only problem I have is the inverting input that gets shorted to GND... Maybe I can use a circuit that does the opposite that an LM358N / LM2904 does. This chip converts the inverting audio to a positive only output. I don't know what chip can be used for the opposite and I don't even know if the LM358 will work for audio. Also, the PSU isn't the problem, it's the audio source because the amp uses only a single supply and not a center tapped or dual supply. I also don't believe that anyone understands what I'm saying because I don't know the technical terms for this problem.