[sdiy] Simple discrete Unity-Gain Follower ?

[Grant Richter]

Just don't forget that the speakers your are feeding have distortion in the
range of 10%.

This may not be true of new designs with feedback accelerometers on the
cones. But speakers have always been the weakest link in the audio chain.

> The NE5532 / NE5534 shows, that an integrated op amp
> can have very low distortion. It has also low noise
> (also 1/f).