INTRODUCTION To begin, I would like to thank Questyle Audio, specifically Bruce, for his help with purchasing the QP1R. I "pre-ordered" the DAP for my birthday and got it a few months later when it was finally released. Since then, I have always carried my QP1R wherever I go. As a student programmer, I find listening to music increases my workflow speed and has made this QP1R a valuable edition to my EDC (everyday carry). I have used 3 IEMs with the QP1R: Westone UM Pro 50, W60, and Campfire Audio Jupiter. Therefore, my review will revolve around...