What is the problem? Digikey has about 8000 of the LM833 with pins and many thousands with surface mount in stock.
I use TL072 dual low noise opamps. TL071 is a single and TL074 is a quad.
Regarding these equivalent opampsm, if I use them on the same circuit as their counterpart, would there be needed changes on the circuit or I just simply replace them?
The LM833 has PNP input transistors so its input bias current will cause the inputs to go in a positive direction if the resistors have high values.
The NE5532 has NPN transistors so its input bias current will cause the inputs to go in a negative direction.
The NE5532 has diodes across its inputs.