Accuphase DC-91

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The Accuphase DC-91 is a high-end preamplifier that was launched in 1998. It is part of Accuphase's legendary DC series, which is known for its exceptional sound quality and build quality.Some of the key features of the DC-91 include:1. Fully balanced circuitry: The DC-91 uses fully balanced circuitry, which eliminates common-mode noise and improves signal purity. This results in a more detailed, transparent, and dynamic sound.2. Tunnel coupling: Accuphase's unique tunnel coupling technology is used in the DC-91 to minimize signal interference and improve channel separation. This translates into a more precise and clear soundstage.3. Analog computer control: The preamplifier employs an advanced analog computer control system that provides high precision and reproducibility. This system allows for various settings to be easily adjusted and stored, enabling precise switching between different audio sources.4. Discrete circuitry: The DC-91 uses discrete circuitry throughout, which ensures precise control and low noise levels. This results in a more detailed and nuanced sound.Overall, the Accuphase DC-91 is a highly acclaimed product that delivers exceptional sound quality and build quality. It is a favorite among audiophiles who demand the very best in terms of audio performance and reliability.