Sea l DS teaching series feedback sound reinforcement for bridging the digital

Sea l DS feedback sound reinforcement for bridging the digital is a full digital teaching, conference dedicated sound reinforcement product that integrates DSP digital feedback suppressor, DSP digital automatic filter, intelligent digital microphone mixer, digital high bass controller, digital audio processing modules of technical superiority, meeting, teaching sound reinforcement of acoustic feedback problems, increase microphone sensitivity 6-12DB, microphone pickup distance to 3-6 m. Use of this product, simply install the classroom 3-4-interface microphone, pick-up range will be able to cover the entire platform, without having to carry a microphone to free speech, so that the speaker broken free from the bondage of the microphone. It overcomes the handheld microphone with inconvenience, collar clamps (wireless) phone often replace the battery, with frequency, fragile, management, trouble, and so completely resolved defects, have long plagued people indoor (Hall, Church) amplified acoustic feedback. But this product is designed specifically for instructional design of the "one-key" operation, automatic scheduled shut down of a number of user-friendly features, convenient use, no need for expert management. This product adopts internationalized line, import SMD devices, soldering, rigorous process, inspection process ensures that the products of first-class quality haisheng. Features: 1, built-in high-speed 24BITA/D, D/A conversion chip, dedicated DSP audio processing chip, eliminating the use of advanced DSP feedback technology to automatically search for feedback whistling frequency, the frequency of LCD screech and automatically form a digital filter to eliminate whistling frequency, can effectively improve the microphone gain 6-12DB. 2. using the intelligent digital microphone mixer technology, you can reduce the number of simultaneously open microphone, improve the sensitivity of the microphone, and reduce environmental noise picked up in, improving the clarity of the microphone pickup. 3. using the LCD interface, digital presses, an intuitive and convenient, no external knobs and equipment work more stable, more convenient. 4. using the convenience of teaching from the "one key" operation mode, automatic timed shutdown (no standby power) without the need for expert management. 5, have the standard 232 serial interface, available via PC software or in the control implementation on native switch and microphone volume of external, remote control. Scope: multimedia classroom, ladder classroom, conference rooms, courts etc sea l DS series teaching private feedback to eliminate sound amplifying equipment: haisheng company set years professional sound reinforcement, accepted a dozen senior teaching experts, according to the teaching of practical case, the design and development of the "Ocean", l "DS series teaching private sound reinforcement device. It completely solve the meeting, teaching sound reinforcement in acoustic feedback. Just in the classroom setup 2-3 interface microphone pickup range will be able to cover the entire platform. No need to carry a microphone, the teacher can free speech. Just gently "one key", you can easily and freely to complete classroom teaching, greatly reduce the labor intensity of the teacher, improves the quality of teaching, truly speak clearly, to understand. The green of the sea rise teaching sound amplifying equipment, will be most conducive to the health of students, teachers, one of the most environmentally sound reinforcement of teaching needs, let millions of products for teachers of puzzle as early as possible to get rid of pharyngitis, also teacher a healthy body! give the teacher a relaxed mood! 1, the products are divided into desktop, wall-mounted, can be placed in a dedicated Cabinet, teaching can also be directly on the walls. Wall-mounted with anti-theft, durable, and other characteristics. 2. this product for teaching requirements, design a one-touch operation, automatic timed shutdown and other user-friendly features. Teachers in class simply press the power key, you can easily use the class, device timing automatic shut down completely (no standby power) without the need for personnel management. 3. in order to meet the long time working in a confined environment, all power products are designed for low-noise cooling fan. 4, with the use of the company's JMC-290A/B interface microphone (JMC-290A/B microphone with integrated microphone volume control key, external stereo audio interface), you do not need to open the door, you can achieve the microphone volume size and quiet desktop control. And on the desktop you can access devices such as MP3, portable, direct, greatly facilitates the English, music, and other courses. 5. this device is equipped with RS 232 serial interface control devices can implement native size and Mute microphone volume control. 6, the functional interface, and debugging interface completely separate, and prefabricated parameter setting prohibits microphone volume adjustment, prohibition of storage, and other work mode, avoids the use of, the debug parameter is incorrect changes to ensure the normal operation of equipment.