Premier Guitar's Shawn Hammond demos the Humphrey Amplifiers Espresso 15 tube acoustic amp for the July 2013 issue of Premier Guitar.
Premier Guitar editorial director Shawn Hammond oversees planning, management, and execution of all PG articles, videos, audio, and social-media activity. He has a degree in journalism from Brigham Young University, and a long history in guitar journalism predating his tenure at PG.
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