Introduction
1

Introduction

The 558 Multi Channel Power Amplifier provides five discrete power
amplifiers in a single enclosure, and is ideal for multi-channel surround
systems. Two pairs of channels can also be operated in bridge mode, for
over twice the power output.
The 558 Multi Channel Power Amplifier uses a unique feedback topology
and precision local error correction system. It includes two massive twin
wound toroidal transformers, and the unit has full thermal, load, and DC
protection on every output.
Each of the five channels provides either balanced or unbalanced inputs,
and these can be selected individually.
This guide is designed to enable you to obtain the best possible results
from the unit in conjunction with the other units in your system.