Westone’s UM3x is clearly a professional product. Where hitherto, our headphone reviews have focused on the casual and audiophile listener’s tastes; and in the case of the Sleek CT6 Custom, the musician; the UM3X is designed for stage performers. It’s sturdy, unadorned housing and well-relieved stress points clearly illustrate this fact. Despite Westone’s intended professional market, many users are clamouring to buy this unit for personal use. How does it fare when compared and contrasted with other personal earphones? Let’s take a look.