This service manual covers the Bowers & Wilkins 803 S, a distinguished model within the 800D Series. Engineered for exceptional audio reproduction, the 803 S features advanced driver technology, including a 25mm Diamond Dome tweeter, a 130mm Continuum FST Midrange, and dual 165mm Aerofoil Profile Bass Cones. Its robust construction, characterized by a 3-way vented-box system with a Nautilus tube-loaded tweeter and Turbine head, ensures superior performance across a wide frequency response of 20Hz - 35kHz. The meticulous design and high-quality components underscore the engineering excellence and reliability synonymous with Bowers & Wilkins products.

This comprehensive service manual provides essential information for the maintenance and repair of the Bowers & Wilkins 803 S. It details critical procedures such as disassembly and assembly, offers insights into crossover schematics, and includes vital service information. The manual is designed to assist owners, technicians, and service professionals in understanding the intricacies of the 803 S, enabling them to perform accurate diagnostics and effective repairs. Its content is structured to ensure clarity and ease of use, facilitating the preservation of the speaker system's optimal performance and longevity.