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Hi,
NE5534 is at least 40 years old.
Why do you look for those old Opamps.
It was a good audio Opamp, but now there are better ones.
Klaus
The op-amp stages have virtually no gain so I doubt there is any real advantage in using super low noise amps. Almost all the hiss will be coming from the output stage.It has been proven a lower noise alternative for my circuit **broken link removed**
The Jfet ones I have tries yielded in weird oscillations and other problems and also not lower noise (hiss)
I did a lot of noise calculations and I can't see how a series resistor can improve SN ratio. Please explain with values.Headphones from an audio power amplifier always get an attenuator to feed them and keep the signal/noise ratio decent.