cjdelphi:
about 4 years ago (i know i know) I bought an what I thought was a 8 pin dip, Audio Amplifier, when i got home and looked it up..it was a "LM833N Dual Audio Operational Amplifier"
and that's what that circuit uses uses (above picture) so I need a 2nd voltage rail? to pull off an audio amplifier?
Or as GM stated, instead of dual rail power you can use series capacitors coupling on the input and output of the op-amp. How much voltage or power are you expecting to get out of the op-amp. They are usually only good for preamp type audio applications, not for directly driving speakers.
Lefty