The M-75 compression driver designed for use in applications where high SPL and low distortion are required. A pure titanium diaphragm featuring a 75mm copper-clad, aluminum flat-wire voice coil yields high sensitivity, low distortion and extended frequency response. Each motor system has a copper shorting ring surrounding the pole piece which effectively reduces eddy current induced distortion with the added benefit of increasing the very high frequency output by reducing the inductive rise of the voice coil.