In the high range is equipped with a 2.3cm dome type tweeter using the DUD boron diaphragm as well as the mid-high range. DIATONE DS-3000. in low-pass is equipped with a 32cm cone type Woofer. In addition, to reduce the distortion that occurs due to the non-axial symmetry divided vibration and axial symmetry split vibration in that it has a greater thickness, to provide users with a rich bass reproduction. | eBay!