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Message: <blockquote data-quote="Shonver" data-source="post: 1147975" data-attributes="member: 34">Unfortunately, reliability suffers when you shoe-horn electronics into such compact enclosures. I always admired the form factor of these Cyrus products, assuming (wishfully) that they had a handle on reliability*. Only recently, with class D and its later variants, do we see proliferation of smaller enclosures that bears testimony to its viability, but only because this technology generates less heat.*Indeed, an Optonica power amplifier and preamp I once owned was vertically compact; the amp employing a heat pipe arrangement that later became popular in laptop computers. This is an example of a manufacturer properly handling the need for good heat dissipation. </blockquote>