The RSM custom in ear monitor is a four-driver, three-way design with 2 woofers, 1 mid-range, and 1 tweeter. It has the power and presence to handle any stage, and the clarity and detail to enjoy while on the bus, plane or easy chair.
“ I purchased these earphones a couple of weeks ago and have had the urge to write a review. However, I needed too make sure that they were fully "burned" and used in different environments to see how they performed before taking the plunge. This is my first ever headphone review, so please bear with me - I can't say that I know all the right terms or generate scientific diagrams and...” --mcook1970