The heartbeat of the IE 300 is a refined version of our Extra Wide Band (XWB) 7mm driver, made in Germany and revered for its breathtaking acoustic performance in a deceivingly compact package. A new blend of materials in the diaphragm provides high frequency clarity, subtly warm mids, and clean bass response with low harmonic distortion. Although diminutive in size, its output simply sounds larger-than-life, offering intimate access to your favorite tracks