没有灯塔的警报器DSA.

克服了工业环境的环境噪声提供最大语音识别和音调再现产生111 DBC到121 DBC @ 100'两个安装套件可用的UL和CUL列出的标准型号包括45'电缆尾，DSAX-1型号包括94'电缆尾部功能联邦Signal’s Model DSA Directional Speaker Array provides excellent voice and tone reproduction and is ideal for overcoming high levels of industrial noise. Design flexibility allows the user to combine up to four speaker arrays; each array will hold from two to six re-entrant speakers. Speakers have a 70° horizontal angle of dispersion, accommodating specific sound output patterns. (When vertical stacks are placed 90° apart, a 180° horizontal coverage is possible.) The Model DSA mounting kits allow for multiple speaker arrays to be mounted on the same pole at 90° increments. The downward tilt can be adjusted by 15°. The mounting flexibility of this system allows the speakers to be pointed directly at a targeted area for more concentrated sound output.