The Hapa model, like the Beamer, is a double-soundhole, expanded-soundboard guitar. It features an extended cutaway design, allowing access to the high frets. The area of the two soundholes is similar to that of a conventional round hole guitar, but this design splits the hole and moves it into the upper bout so that a larger, uninterupted area of the soundboard can vibrate. This makes it possible for the bass response of a larger guitar to be acheived in a smaller one. The proximity of the bass side hole makes the sound of the guitar much fuller and louder to the player.For an explanation of the double hole soundboard design, click here.