Henan meeting audio equipment

Henan meeting audio equipment amplifier and speaker connected with four elements Henan meeting audio equipment Zhengzhou conference audio equipment audio sales manager Liu Yongjie 159 + 3713 + 2363 Business QQ: 96 + 234 + 3035 amplifier and speakers connected with the four elements of the amplifier and speaker connected with stress and well-being affordable, moderate hardness, in order to achieve the full set of equipment to restore tone is neutral, it is only from the viewpoint of art. Zhengzhou professional audio equipment prices Zhengzhou Jin Yu Hua in Zhengzhou professional audio equipment prices, Li Wo brand speaker amplifier, we pursue a "quality first, technology innovation, integrity and pragmatic," the purpose, customer-focused, providing cost-effective radio products, improve the quality of service . Zhengzhou Jin Yu Hua Acting Company's products are: Henan audio monopoly, Henan professional audio Monopoly (LeadWorld) Wo sound Henan agent (LeadWorld) Wo amplifier Henan agent (Fugue) box Microphone Henan agent (Kston) Jinshi shield public broadcasting Henan agent Zhengzhou professional audio equipment prices Market Distribution unit: Liu Yongjie 15937132363 Business QQ: 962343035 Jinshi shield public broadcasting Catalogues: constant pressure amplifier, preamplifier, pure power amp series broadcast peripheral smart device series Ceiling speaker series Wall meetings. . audio / sound controller series microphone stand / TV hanger / LCD wall shelf series all-weather indoor and outdoor Yinzhu series Garden lawn audio series, however the technical aspects of the elements to consider are: a power matching two, three power reserve match , impedance matching four match damping When patching if we recognize that the above four points, can be used to get the maximum performance of equipment, most full play. Power matching audio sales manager Liu Yongjie 159 + 3713 + 2363 Business QQ: 96 + 234 + 3035 in order to achieve the requirements of high-fidelity listening, the rated power should be based on the best listening sound pressure. We all have this feeling: volume hours, the sound weak, thin, dynamic get out, dull, low frequency significant lack fullness poor voice seemed to shrink in the inside out. When the appropriate volume, sound natural, clear, mellow, soft plump, powerful, dynamic out come. But excessive sound, sound stiff not soft, rough, there are ears pierced feeling. Thus reproduced sound pressure level and sound quality is more related to the provisions of SPL listening area is preferably 80 ~ 85dB (A-weighted), we can learn from listening area to the speaker and speaker distance calculated characteristic sensitivity Speaker of the rated power amplifier rated power. Power reserve match amplifier and speaker connected with the four elements - Henan audio speakers: In order to enable it to withstand the impact of a program in bursts of intense pulsed signal rather not damaged or distorted. There is an empirical value may refer to: the selected speaker nominal rated power should be three times the power obtained by theoretical calculations. Amplifier: Tube amplifier and transistor amplifier compared to the required power reserve is different. This is because: tube amp overload curve is gentle. To overload the music signal peak, tube amplifier clipping phenomenon is not obvious, but the peak of the tip rounded. This is what we often say that the Soft Clipping. The transistor amplifier in the overload point, the rapid increase in non-linear distortion of the signal is severely clipped, it is not so rounded peak but to cut it neatly flattened. Complex impedance analog speaker was resistors, inductors, capacitors, and several high-quality transistor amplifier test the actual output capabilities. The results show that there is a phase shift in the load case, which had a nominal 100W amplifier, just 5W at 1% distortion when the actual output power! Whereby the transistor amplifier for reserve selection: hi-fi amplifier: 10 times high-grade civil amplifier: 6 to 7 times the civil mid-range amplifier: 3 to 4 fold tube amplifier can be significantly less than the above ratio. How much the average sound pressure level system should be left margin and maximum sound pressure level, run the program's content should be considered, working environment. The minimum amount of redundancy 10dB, for modern pop music, disco and other music, you need to leave 20 ~ 25dB redundancy, so you can make the sound system safe and stable work. It refers to the impedance matching amplifier rated output impedance, should be consistent with the speaker's nominal impedance. At this time, the amplifier in the best design load line status, it can give the maximum power without distortion, if the speaker's nominal impedance is greater than the rated output impedance of the amplifier, power amplifier's actual output will be less than the rated output power. If the speaker's nominal impedance is less than the rated output impedance of the amplifier, the sound system to work, but had a dangerous overload of the power amplifier, power amplifier requires a perfect over-current protection measures to solve, in terms of tube amplifier impedance matching requirements more stringent. Damping matching amplifier and speaker connected with the four elements - Henan audio audio sales manager Liu Yongjie 159 + 3713 + 2363 Business QQ: 96 + 234 + 3035 is defined as the damping coefficient KD: KD = amplifier rated output impedance (equal to speakers rated impedance) / amplifier output resistance. Since the amplifier output resistance has actually become speaker of the Nepalese resistance devices, KD value will determine the amount of speakers Nigeria suffered resistance. KD higher the value, the more weight resistance Nepal, of course KD values ??of the amplifier is not the better, KD values ??over the General Assembly speaker resistance Nepal is severe enough that the leading edge of the pulse build time increase, reducing the transient response indicators. Therefore, when selecting the amplifier should not be one-sided pursuit of large KD values. As a home hi-fi amplifier has a damping experience for reference, minimum requirements: transistor amplifier KD value greater than or equal to 40, the tube amp KD values ??greater than or equal to 6. Ensure steady state characteristics and transient characteristics of the basic conditions for good playback should pay attention to the speaker's equivalent mechanical quality factor (Qm) and the amplifier damping coefficient (KD) complexes, such complexes feeder need to make sound speaker system as a whole part of consideration. Speaker of the feeder should be equivalent resistance small enough to the speaker's nominal impedance is negligible in comparison. In fact, the speaker feeder power loss should be less than 0.5dB (about 12%) to achieve this cooperation.