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Introduction
In choosing the 551 Integrated Amplifier you have acquired a component
that combines major advances in audio and engineering design. It
combines a full function preamplifier with a high performance power
amplifier.
The preamplifier provides six audio inputs, each of which can be
individually adjusted for sensitivity, and identified on the four-character
alpha-numeric display. A very high quality MC or MM phono stage is
available as an option for the dedicated LP input.
The power amplifier uses a unique feedback topology and precision local
error correction system. It is designed and constructed in dual mono
format, including a massive twin wound toroidal transformer.
This guide is designed to enable you to obtain the best possible results from
the unit. If you have just purchased the 551 Integrated Amplifier you should
first turn to the chapter Setting up the integrated amplifier, page 25, which
explains how to unpack and install the integrated amplifier correctly.