Charlie Hughes is the principal consultant at Excelsior Audio, providing consultation, design, and measurement services primarily to loudspeaker manufacturers since 2004. Charlie received a B.S. in Physics from the Georgia Institute of Technology in 1988 and has worked as a loudspeaker design engineer for several manufactures. He currently has 7 patents issued relating to loudspeaker design, mostly dealing with directivity control. Charlie is a member of the AES, CTA, IEC, and Syn-Aud-Con. He is very active on several AES, CTA, IEC, and AVIXA standards committees, serving as the chairman for CTA R3 WG1. In 2013 he received the CTA Technology Achievement Award for his standards work (formerly CEA). 
Charlie assists the Ahnert Feistel Media Group (AFMG), located in Berlin, Germany, in the development and testing of many of its software products. He provides domestic and international training for these products and well as customer support. 
Charlie’s articles have been published in Audio Xpress, Live Sound, Syn-Aud-Con Newsletter, Voice Coil, and others. Charlie has presented multiple papers and been an invited speaker and panelist at numerous AES conventions and events. Additional info about Charlie and his company can be found at www.excelsior-audio.com.