High Power Loudspeaker Enclosure Design And Construction

This introduction to loudspeakers and enclosure design explores the many types of enclosure and drive units. Crossover units are also explained: the various types, how they work, the distortions thay produce and how to avoid them. Also included is a step-by-step description of the construction of the Kapellmeister loudspeaker enclosure, a design that involves novel features which overcome many of the diadvantages of more conventional types. It is a transmission line speaker that has remarkable stereo imaging, an uncoloured musical sound, occupies minimal floor space and is inexpensive to build.

Introduction to Loudspeaker Design is written for students, technicians, engineers and hobbyists seeking an overview of the technology of loudspeakers. Starting with a brief history of audio developments the book begins by introducing the concepts of frequency, pitch and loudness and proceeds to develop the idea of a loudspeaker as a system. The book covers such topics as loudspeaker design tradeoffs, spatial loading, diffraction loss, cavity effect and enclosure construction. A complete chapter is devoted to the subject of crossover design including design equations. The second edition adds a new chapter on simulation and analysis which includes design equations for closed and vented type speakers. The appendices contain technical references, design aids, glossaries and a chart depicting 18 different loudspeaker enclosure types. The author is a physicist/audio design engineer with over 35 years experience in the research and development of audio products spanning both hardware and software. His WinSpeakerz, TrueRTA and DATS software applications are widely used throughout the audio industry as tools for simulating and measuring loudspeaker performance. Captain Murphy served as a space systems analyst for NORAD during his military career. Changes for the Second Edition: The second edition brings new material and polishes the first edition with many new or improved illustrations. Chapter 2 was expanded with the second half split into a new Chapter 3 titled "Speaker Response Functions." The discussion of Thiele-Small parameters has been expanded and now covers small-signal parameters vs. large-signal parameters as it explores the role of the test signal level in parameter measurement. The crossover design chapter has been expanded to include formulas for calculating component values for the most popular crossover types. Equations have been added for calculating impedance compensation and attenuation networks. The old Chapter 7 FAQ material was integrated into other chapters as appropriate. A new Chapter 8 titled "Loudspeaker Simulation" has been added and introduces loudspeaker equivalent circuit analysis with equations for calculating the magnitude and phase responses of closed and vented loudspeaker systems. Additional design equations are introduced and then examples are given for calculating the responses of a closed box and a vented box loudspeaker. Detailed design equation summaries are given for closed and vented boxes. Appendix C was added to provide a glossary of symbols and a glossary of terms. The box type charts were moved to Appendix D.

This volume seeks to lay the groundwork for readers who want to understand the general functions of loudspeaker enclosure systems and eventually experiment with their own designs. Written for design engineers and technicians, students, and intermediate-to-advanced acoustics enthusiasts, it presents a general theory of loudspeaker enclosure systems. Featuring illustrated and numerical examples, the book examines diverse developments in enclosure design, and studies the various types of enclosures as well as varying parameter values and performance optimisation. Topics examined include: the synthesis of vented systems; infinite-baffle and closed-box systems; electro-acoustical relations; and reflex response relationships.

Provides a technology overview of what goes into a high performance loudspeaker and covers all the latest advances in the field The design of high performance loudspeakers requires a mix of developed skills in electroacoustics, high fidelity sound reproduction and subjective evaluation. Taking a designer’s view of the subject, this new edition of High Performance Loudspeakers, Seventh Edition provides a comprehensive, timely and practical knowledge base to aid the design of superior loudspeaker systems fit for purpose. It is updated throughout with the latest progress in research and technology, synthesis and analysis, digital signal processing incorporated products, automated production test systems and wireless compact designs. This Seventh Edition of the highly successful guide to the design and specifications of high quality loudspeakers and loudspeaker systems addresses the issue of where higher performance and sound quality is required and shows how the numerous considerations — including application, target price, size, aspiration and particular market — lead to a complex mix of design and engineering decisions. The book has also been substantially revised to reflect the many changes in the technology of loudspeakers and includes two brand new chapters — one covering ultra-compact systems and DSP integration, and the second providing details of a worked example of the loudspeaker systems design process. Offers a complete overview of the technology Thoroughly updated with new content to reflect the latest advances in the field while retaining the firm theoretical foundation of previous editions Presents a designer's point of view of the field, helping to equip both amateur enthusiasts and academically trained graduates with industry practice Covers all the newest developments in the field of high performance loudspeakers Offers a critical and objective approach to all subjects covered, rather than a simple spelling out of theory and facts Appeals to both amateur speaker builders as a source of ideas, and to professional speaker designers with an overview of competitive products and features Acknowledged industry-wide as the definitive work on speaker design and analysis, High Performance Loudspeakers, Seventh Edition is essential reading for audio engineers, speaker designers, equipment designers and students of acoustic engineering, electronics and electro-acoustics. It will also prove invaluable to students of electronics, broadcasting and recording techniques, but will also be of interest to authors and journalists in audio, and not least, amateur loudspeaker builders and enthusiasts.

Loudspeakers: For Music Recording and Reproduction, Second Edition is a comprehensive guide, offering the tools and understanding needed to cut out the guesswork from loudspeaker choice and set-up. Philip Newell and Keith Holland, with the assistance of Sergio Castro and Julius Newell, combine their years of experience in the design, application, and use of loudspeakers to cover a range of topics from drivers, cabinets, and crossovers, to amplifiers, cables, and surround sound. Whether using loudspeakers in a recording studio, mastering facility, broadcasting studio, film post-production facility, home, or musician’s studio, or if you simply aspire to improve your music-production system this book will help you make the right decisions. This new edition provides significant updates on the topics of digital control, calibration, and cinema loudspeaker systems.