Doshi Audio Evolution Line Preamplifier
At first glance, the recipe for the Evolution Line Preamplifier appears straightforward. However, like those deceptively simple dishes encountered in high-end restaurants, it is both more complex than it initially seems and composed of exceptionally high-quality ingredients. It utilizes a single ECC99 valve per channel, with no negative feedback employed at any point, and the design intention is to maintain a low output impedance in all use cases.