We point out this out up front because it might help you understand just how serious we are when we point to brightness as the major flaw in NOCS’s NS800 ($199), a new and beautiful-looking little earphone that we began testing earlier this week. Designed in Sweden, NS800 ships with four sets of silicone rubber ear tips, a shirt clip, and a simple zippered carrying case, and it’s being offered in two versions: one black, the other white,…