Leading peer Small/Thiele parameter optimization design technology-convenient cabinet design; yellow German Kevlar/natural fiber ultra-light and high-strength integrated diaphragm-natural and accurate sound; 

German special fatigue-resistant high-loss natural rubber folding ring-strong absorption of excess vibration Energy; British-made high permeability and high stability centering support piece-improve the characteristics of air compression;

 fully enclosed dual-magnet high-energy anti-magnetic magnetic circuit system-power surging linear drive source; HiVi special symmetrical magnetic field (SMD) drive technology- High sound pressure and low distortion output; finite element precision computer simulation design high-strength narrow iron frame-to eliminate harmful resonance;

 high-power high-temperature resistant Kapton voice coil frame without eddy current loss-guarantee of high-quality bass.

It is suitable for the low frequency unit in the Hi-Fi two-way phase inverted speaker system and the mid-bass unit in the three-way system.