Hard-structured building materials used in buildings such as train stations, airports, and religious sites can hardly absorb sound, causing reverberation and strong reflections. The new variable directional loudspeaker array from Bosch will overcome this challenge and provide unmatched acoustic performance in demanding environments.
The main feature of this array is the digitally controlled pointing technology that allows the sound to propagate only in a set direction, ensuring perfect sound intelligibility while creating the best sound field. The system's electronic beam pointing function optimizes listener coverage and avoid wasting output energy on the roof or open space above the listener.
Active line arrays also have advantages such as wider coverage and easier installation. However, one drawback of current active line array design is that the array configuration is more troublesome and usually requires multiple attempts and failures to produce a perfect beam. Bosch's new flexible directionality array intelligent configuration tool solves this problem. Bosch Configuration Software uses a preset environment setting database that can be applied to any acoustic environment. The installer only needs to enter environmental dimensions and requirements, and the rest is done by the software. Using this software, you can also customize the sound processing methods and set monitoring parameters. Therefore, a speaker system that can be quickly installed and produces a high-reducing sound quality effect.
The loudspeakers are fully compliant with the EVAC standard, which means that they meet local and international requirements and are perfectly suited for all voice alarm applications. All amplifiers and speaker assemblies, including the driver, are fully monitored, record operational faults, and connect a 24V DC backup power supply.
The product range of the modular design includes a basic unit and an easily connected expansion unit. In addition, the configuration software can also automatically detect connected expansion unit units to save configuration time. The basic unit itself can cover a range of up to 15 meters. Add an extension unit that covers a range of up to 30 meters and add two extension units that can cover up to 50 meters. Only a few standard components are used to meet various requirements, so there are fewer equipment lists, simpler installations and more economical prices.
The stylish, low-profile design allows it to be perfectly integrated into any environment. It can be used indoors and outdoors, and modular devices are easy to install. The array can be mounted on a wall using a mounting bracket with 80° corners. The device has preamplifier cooling so it can also be embedded into a wall.
With variable directional loudspeaker arrays, Bosch Security Communication Systems not only provides customers with superb product performance, but also provides installation tools that save time and convenience.
Although there are many types of tapping screws, they all have the following similarities:
(1) are generally made of carbonized carbon steel (accounting for 99% of total production). It can also be made of stainless steel or non-ferrous metals.
(2) The product must be heat treated. Carbon steel tapping screws must be carbonized and stainless steel tapping screws must be solution hardened. In order to make tapping screws to meet the requirements of the standard of mechanical properties and performance.
(3) The product surface hardness is high, the core toughness is good. That is, "soft inside strong outside". This is a major feature of tapping Screw performance requirements. If the surface hardness is low, it can not be screwed into the matrix; If the core toughness is poor, a twist will break, can not be used. So "inside soft outside steel" is self-tapping screw to meet the use of performance, very important requirements.
(4) The surface of the product needs surface protection treatment, generally electroplating treatment. Some product surface must be treated by phosphate (photostatting), such as wall panel self - tapping screws for photostatting.
(5) Production by cold heading process. It is recommended to use high-speed cold heading machine and high-speed wire rolling machine or high-speed planetary wire rolling machine. High speed is emphasized here to ensure product quality. Only the head of tapping screw produced by high-speed machine is well formed and the thread quality is high.
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