In 1906, American De Forest invented the triode, creating the first human electroacoustic technology. In 1927 Bell Laboratory
In 1915, an American named E. When S. ridham attached a telephone listener of the day to a horn playing a recording system, t
The same equipment with very important sound system is sound box, sound box is composed by horn unit and box body commonly. T
Because the sensitivity of professional audio equipment is higher than that of ordinary household audio equipment, the power
About Us
Products
News