It sometimes seems as if the design of an audio amplifier is a
competition to achieve the lowest possible distortion.
However, reducing distortion below a certain (Iow) level
merely increases the cost of the amplifier and does
not further improve the sound quality. It is for this reason
that the design of the integrated amplifier has been
kept simple, although the maximum distortion is
weil below the discernible (audible) level.
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