This service manual pertains to the Adcom GFA-555 mk2, a high-fidelity audio amplifier. Designed for audiophiles and professional audio applications, this unit is recognized for its robust construction and exceptional sound reproduction capabilities. Its engineering prioritizes clarity, power, and reliability, making it a distinguished component in audio systems. The manual covers the original service information for this esteemed model.

This comprehensive document provides essential technical data and procedures for maintaining and repairing the Adcom GFA-555 mk2. It includes detailed chassis and electrical information, wiring diagrams, technical diagnostic procedures, and disassembly and installation instructions. Written by the manufacturer and utilized by dealership technicians, this manual is an indispensable resource for owners, service professionals, and enthusiasts seeking to ensure the optimal performance and longevity of their amplifier.