RH-AUDIO

The flat art   mount wall speakers   make sounds through stimulating the bending wave in the soundboard. Its hardcore, that is, the high-tech intelligent actuator is exclusive. Its invention has completely changed the traditional horn technology that has existed for more than 80 years, it is different from the traditional sound box from the vocalism principle to the appearance. It makes sounds when the exciter touches the soundboard making bending wave. The frequency of the soundboard produced by different materials will be different. Its invention completely changes the traditional horn technology that has a history for more than 80 years. From the vocalism principle to the appearance, it is different from the traditional sound box, so the service life of the flat art speaker is longer. Generally, the directivity of a sound box that is made of a traditional horn is very poor. Only when  standing in front of the sound box, can you hear the perfect sounds, especially the p...

Amplifier, it's name is the power amplifier. As the name suggests, amplifier is to amplify the power. The power amplifier belongs to the post stage amplifier, and its function is to enlarge the signal sent by the front stage processing equipment to large enough (the final frequency of the signal is in accordance with the frequency of the power amplifier, for example, 100W's amplifier can reach 28V with 8 European load) to drive the sound box. Amplifier is the "power amplifier" for short, the output signal amplitude and the intensity of the signal source (such as the CD/DVD/ card holder radio head, mp3 and so on) is not enough to drive high power loudspeaker (sound box horn), so it must be amplified by the amplifier. The mixer, as the name suggests, is used for tuning. The mixer belongs to the front stage processing equipment, and it usually does not have a built-in amplifier. Its function is to enlarge the multi-road sound source (such as record machine, CD machine, m...

HIFI PA system integrated amplifier is slightly different from AV PA. HIFI often has the following characteristics: 1. 2.0 soundtrack stereo. Most HIFI PA only has two channel outputs and is different from AV PA surround sound effect. HIFI   PA system integrated amplifier   pays more attention to high fidelity sound quality, lower sound distortion, and true restored music. 2. The advanced HIFI PA applies for the front and back separation to ensure the reproduction of higher-quality timbre. 3. The HDAM in HIFI PA helps to produce more dynamic, accurate and elaborate voice. 4. A high-quality HIFI PA must use a stable mechanism and a thick metal panel to reduce the interference among the audio circuits and help improve the sound quality. 5. It applies for a high-speed discrete circuit with current feedback, which is conducive to achieving high channel separation in the ultra high domain. 6. The high-grade PA with the F.C.B.S. system function can connect two front stages, and tran...

Tip 1 1. The   high ceiling speaker   is divided into 2 kinds of pressure and general impedance. 2.If the voltage is fixed, you will remove the fixed voltage transformer and connect it to the common amplifier. The connected horn has the problem of limiting impedance matching. 3. If it is the common impedance, then you can directly connect to the PA system integrated amplifier. 4. It is better to connect the PA system integrated amplifier. Tip2 The general constant pressure speaker is mostly 70V and 100V these two kinds of voltage. Taking the most side of the two terminals is 100V, it is estimated that the red line is the 100V terminal, the rest is 70V. If it is not clear, it can be measured with a multimeter. The one with big resistance is the 100V.

In 1958, the   Class D Amplifier   was first proposed. And in recent years, it has become more and more popular. The   Class D Amplifier   is designed to produce the input audio signal (with real, efficient and low distortion effect) on the sound output component at the desired volume and power level. Audio frequency range is about 20 Hz to 20 kHz, so there must be good frequency response in this frequency range as for the amplifier (when driving the speaker with a limited frequency band, the frequency range is reduced. For example woofer or tweeter). Output power capacity varies widely in accordance with the application: from headphones with several milliwatts (mW), the TV or personal computer (PC) audio with a few watts (W), "mini" home audio and car audio with dozens of watts, to household and commercial audio system with high power (hundreds of watts or more), and audio system in the theater or concert hall. The   type D Amplifier   direct analog i...

The first part is the   modulator . The simplest modulator can be accomplished by using only one operational amplifier to form the comparator. Put the original audio signal to the positive input terminal of the operational amplifier after adding a certain of DC offset. And put a triangular wave (generated by the self-excited oscillation) to the negative input terminal of the operational amplifier. When the potential at the positive terminal is higher than that of the negative terminal triangle wave, the comparator outputs the high level, whereas low level is output. If the audio input signal is zero and the DC offset is 1/2 of the triangle peak value, then the high and low level which is output by the comparator will sustain same period. The output is a square wave with duty ratio (1/2). When there is audio signal input: during the positive half cycle, the duration when comparator outputs high level is longer than that when comparator outputs the low level and the square wave with ...

What is Type D Amplifier Class D Amplifier is the amplifier which drives the speaker by ON/OFF switch in the control switch unit. The class D amplifier was first proposed in 1958 and it has become more and more popular in recent years. In the past several generations, class D amplifier has been greatly developed, and the system designers have greatly improved the durability and audio quality of the system. In the traditional   type D amplifier , the analog or digital audio signal is converted into PWM signal by the controller before the signal is integrated into the power MOSFET tube in the power backend device. These amplifiers are highly efficient, and the very small radiator is used or no radiator is required at all. While it reduced the requirement for power output. The Advantages of class D amplifier In conventional transistor amplifiers, the output class amplifier contains transistors that provide the instantaneous continuous output current. There are many types o...