As to the sound of different chips, I'm rather with Arnie on this one.
If the design is reasonably sound, and you get low distortion and noise,
then I don't think there would be any audible difference.

The LM4562's boast 20v/uS slew rate, the 5532's a measly 6v/uS ,
google for lm4652 and there are a few people saying same as me, there's more
detail and bass drums stand out amongst bass lines, I'm convinced they
didn't before, I guess I should put the 5532's back in but that's too much
messing and I have other fish to fry.........

I too would avoid 741's and LF351's too that seem to keep appearing...

Pete