Headfonics's MarcusD serves up a well-organised review of Westone's new W50.

“The Westone W50 is perhaps one of the hardest hitting bass signatures I have yet to hear from a universal BA IEM. It is leaps and bounds ahead of the older UM3X, perhaps even a little snappier and more forward than my UM Merlin’s and leaves the UE900 in it’s rear view mirror. Gone are the days when BA IEM’s are avoided when matching with beat heavy genres. Westone nailed this one and the W50 is anything but boring. Yet at the same time the slightly recessed mids and highs suffer with that kind of focus on the bass and it’s inherently dark tonality. It lacks dynamic headroom and top end articulation to really compete with some of the similarly priced heavyweight audiophile customs and IEM’s from AKG and Sennheiser.”