The sound space where what I continue chasing does not have the cloudy weather forever. Sound full of a sound field and the translucency to spread in front.I adopt the OFC7N voice coil of 99.99999% of purity, and constructed magnetic circuit metal parts (York) are unified more by two parts. I raise efficiency by raising a magnetic bunch degree and realize a rich audio.It is equipped with a fuser, and soundscape is pursued by newly-designed D to scatter the air in the housing.An input cord of the left right both soup stock right and left independence earthed line (4 cores) structure that attached great importance to sound quality. I lost the transmission loss of right and left and enabled high-quality sound with 4 core structure in pursuit of the sound that I got of the balance. I adopt the lightweight design frame of the rigid superior magnesium alloy. I adopted lightweight and rigid magnesium and realized 265 g in weight. I pursue a light wearing feeling by 3D wing support. The toe Tarui-ya fitting design who controlled a feeling of pressure. The shape is changed to the "line" contact until now by the "aspect" contact that I adopted in the AD series. Is comfortable even for a long time; arrive, and can be enjoyed for a feeling. A feeling of fitting good-quality with the low-elasticity unpleasant pad of the durable, comfortable suede cloth material. It is reverse to the wing support, and the unpleasant pad is changed to the "aspect" contact by conventional "line" contact. Of the low level fall out, and prevents it, and reproduce a low tone of the force. [Model] opening air dynamic model [Driver] phi 53mm, OFC7N bobbin winding voice coil [Output sound pressure level 102dB/mW [5 reproduction frequency band] 25,000Hz [Maximum input] 500mW [Impedance] 48 omega [Plug] phi 3.5mm gilding stereo mini [Cord] 3.0m (single soup stock) [Accessories]phi 6.3mm gilding stereo conversion plug adapter