[sdiy] low noise opamp for audio circuitry?

[Seb Francis]

I like the OPA2132 (quad version is OPA4132)

They are very fast and will tend to 'ring' a bit if used without a 
capacitor to limit the bandwidth.  Fire a square wave through and check 
on a scope ....

Seb


Dan Snazelle wrote:
> Sitting here testing a preamp circuit (so i can plug guitar and vocal into my modular).FIRST i was using a TL074. when i listened to the output, and turned up my speakers, I heard a distinct hissing. (even with input turned down.)
>
> i WAS testing on +/- 9v battery for safety reasons. maybe the 74 doesnt like 9v.
>
> Then i tried an LF444 and all 95% of the hiss went away.
>
> But i have a feeling i can do better still.
>
> SO---what are some good, low noise opamps (in a 4 way package?)
>
>
> thanks
>
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