The M3 is a new hybrid IEM that utilizes a 10mm dynamic driver for bass and a new type of driver that has never been used before in a a commercially available headphone. We will be calling the new driver an Active Balanced Membrane driver ("ABM driver"). Basically, a magnetic membrane "levitates" between two magnets in a static state, and electrical currents cause the membrane to move (see attached diagrams). Since the membrane itself is actively moving, without a voice coil, response and detail are greatly improved as compared to a dynamic driver. The dynamic range is greater than any single BA driver, and conversion of signal to sound is direct, rather than indirect (as found in a BA driver).