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Introduction
The Zen Amp concept is an exploration of how
well you can make a simple audio amplifier perform. It makes for an interesting illustration of design
technique, since more complex circuits are inevitably composed of collections of simple circuits, and
it is well recognized that the optimization of these simple sub circuits is usually the key to getting
the most out of the larger circuit.
Apart from that, there is aesthetic pleasure in
rendering a device in a simple way. Also we find that, other things being roughly equal, simple
circuits sound better musically. The Zen series has so far demonstrated that single gain stage
amplifiers have enough stand-alone performance to justify their use in audiophile applications. There
is no reason why we can’t go on from here to build two and three gain stage circuits, but we have
not yet exhausted the possibilities for single gain stage amplifiers, and so we will explore some
more.
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