Concerts Nowadays
Transducers in a constructive relations have undergone minor changes, mostly because there were material with improved properties. The emergence of high-power amplifiers made relevant development of a large speaker unit capacity. This was made possible through the use of new heat-resistant materials and design changes of the magnetic system to improve heat dissipation. Using new polymer membrane materials speaker was able to reduce the mass of the moving system and increase the efficiency of the converter. There were powerful speakers 6-inch format, with drivers competing in the frequency range 300 3000 Hz. Began to use rare-earth magnetic materials, thus reducing the weight of the speaker. Manufacturer JBL-based magnets has created a new design of magnetic circuit with a double coil.
Increased surface voice coil made it possible to increase capacity and improve efficiency midrange speakers. The powerful tape loudspeakers for professional audio systems allow raise the technology of linear arrays to a new level. Power amplifiers sound became more powerful, more reliable, easier thanks to the use of power semiconductor devices. Power transistors allowed to perform Amplifiers large unit capacity, and power supply with frequency conversion – to drastically reduce the weight and dimensions of the amplifiers. Power amplifiers were performed according to the scheme at D & H. Application of pulse-width modulation output of the amplifier has reduced the heat so that it became possible to reduce the height of even the most powerful amplifiers to 1U. Signal processors and mixers were replaced by element basis, which led to enhancing the functionality of these devices.
Tags: music