This book is an invaluable reference for the dedicated speaker builder. Not intended for the novice, it covers in-depth driver testing, low frequency system electrical impedance tests, frequency response acoustical testing of single and multiple drivers, and techniques for deriving Thiele-Small parameters using both analog and PC based methods. Written by Dr. Joseph D'Appolito, contributing editor for Speaker Builder magazine. He also pioneered the extremely popular "D'Appolito" woofer-tweeter-woofer driver configuration, seen in many successful loudspeakers systems. This soon-to-be-classic clearly explains the proper way to acoustically test and measure a loudspeaker. If you own "The Loudspeaker Design Cookbook" then this book should be the next addition to your technical library. 174 pages. Copyright: 1998.