You’ll gain invaluable information in this interview that will help you learn more about microphone care, use and maintenance. David O Brown is probably one of the 4 best microphone specialists in all of the USA. He has studied and worked for NASA, and is one of the most prestigous microphone technicians around. David has worked for artists such as Stevie Wonder and Celine Dion, among others. This interview is more than a documentary. It is a microphone guide, and it will add great value to any sound engineer, music or producer. In this guide, you’ll learn how to care for microphones, and important things to consider when purchasing a vintage microphone. You’ll also learn the differences between dynamic and condenser mics, and between tube mics and Fet mics. David also covers issues like transformers, mic modifications, and some microphone history.