1. The chamber is made of high quality plywood with into the slot is woven process, make the trapezoidal enclosure structure is more strong and durable.

2. The high of 1.75 was used to realize the "European import diaphragm components, can use rotation angles horn, bass 12" with the United States imported materials, intermediate frequency voices full thick, strength in low frequency, high reducibility.

3. Carefully designed rapidly expanding treble horn adjust the time difference between the high frequency and low frequency unit and correction of the phase Angle difference, and to ensure that the wave surface smooth, provide accurate beam of graphic control and eliminate the interference in the vicinity of crossover point.

4. The crossover is using black polypropylene high quality capacitors and circular tubular inductance, high BOST patent protection circuit design.

5. Through enterprise sound concept design for many years, senior engineer trapezoidal enclosure structure is firm, there is support base at the bottom of the box body, at the same time can also horizontal and vertical lift is very flexible and convenient.