The Harrier ONE is a two way loudspeaker. Low frequency is from a 12″ (320mm) transducers with a 3″ (76mm) voice coil and neodymium magnet. High frequency is from a proprietary Air Motion Transducer (AMT) with a 6.6 x 1.2″ (167 x 31mm) diaphragm. The AMT is partially in front of the low frequency driver. This presents good cohesion between the sources without masking the low frequency driver.