The ERGO AMT has been designed for the absolute musical pleasure without compromises. The utilization of a specifically designed full range transucer based on the Air Motion Transformer is at the base of its superior performances. The result is an almost total absence of distortion and a faster response, which is reflected in the perfect reproduction of any transient or frequency even the smallest ones. The ERGO AMT requires a dedicated Power Amplifier Adapter or better its dedicated ERGO AMP1 or AMP 2 headphones amplifiers.