2007
AL#91 p.11               read this article
Mike Doolin                                                                                           

▪ The author found that a sideport (hole in the side, in addition to the front soundhole) in his guitar changed its voice in an undesirable way. Adding a bass reflex tube to the hole returned the guitar to a tonal range he liked. He remains luke warm to the benefits of side ports. With 5 photos.

This article has been nominated as one of the Guild’s best articles published before 2010.