Introduction:   Two years ago, I first met Jack Vang at the labs of Earwerkz, a then-new IEM design and manufacturing company that was born from his father's hearing aid firm. I had read @shotgunshane's great review of Earwerkz's flagship IEM, the Legend-R, and was intrigued. Not only was Earwerkz local to me being just outside Atlanta, but the positive reviews of the company's entire IEM lineup had my interest piqued. Prior to meeting Jack, I had a personal policy of only purchasing universal IEMs for the purposes of resale value. I figured...