Choosing The Right High Fidelity Audio AppliancePosted by Outzen Ford on June 2nd, 2021 In layman's terms, an amplifier increases the voltage of an audio signal by passing it through several amplification stages. An amplifier is found separately in the electronic circuit or placed in another electronic device as part of the circuitry. For those interested in hi-fi sound reproduction, they are referred to as solid-state amplifiers. There are several types of solid state high-powered audio amplifiers including Class A, Class AB, Class C, and Class D. The difference between each one is based upon the amount of power the amplifier requires to reproduce audio . For instance, Class AB uses more power than Class C and Class D does not use any power at all. These types of amplifiers can be used with most every type of multimedia device for music, videos, and audio tracks. On the other hand, each individual amplifier has advantages and disadvantages. Class A Hi-Fi Amplifier - The Class A amp uses a bipolar power supply that utilizes two high voltage positive terminals to supply power to all three devices. The power is then distributed to the speaker connections as well as the power supplied by the terminal that is connected to the speaker. In a single-ended amp, a triode is used to control the amp. One end of the triode controls the positive supply, while the other ends to provide power to the speaker. The amp will operate at a much higher volume than a Class B amp, which is similar to a conventional Class A amplifier. Class B Hi-Fi Amplifier - The Class B amp is designed to operate at high volumes and is suitable for use with high power-consumption multimedia devices. These amps utilize single-ended magnetic semiconductor diodes for power control. Class B amps also use single-ended magnetic diodes. These devices are found in pocket pc computers and other small electronic appliances that frequently require power-management solutions. Other than these two types, there exists a new amp for you. It is called the Class AB amplifier. Unlike Class A and B, AB amplifiers do not require any power supply. This allows them to function in any type of audio affair. To get an idea of how AB amplifiers work, just picture an AB amplifier combined with an audio transformer. The primary component in any amp is the capacitor. Capacitors handle power supply to the speakers as well as to the amplifier. There are several types of capacitors that are commonly used. The best known is electrolytic capacitors. Capacitors can have a variety of values, some of which are indicated on the box. A high fidelity amplifier will allow you to listen to music in its highest quality. There are many advantages associated with it. Firstly, they will help in reducing distortion of high frequencies. This will result in better musical taste and result in more enjoyable listening experience. Some of the commonly used amp models are the SMPS (subsonic pulse rectifier) from Samsung, the LPET (limited pass filter amplifier) from Logitech, the inductive amplifier from Phebele, and the ALFA (analog low frequency audio amplifier) from Fairchild. In addition, there are also many other brands that manufacture high fidelity amplifiers. However, these brands differ in the way they implement various high fidelity switching elements and circuit designs. Each of these manufacturers has developed its own proprietary switching circuitry design. Since the operation of all of these elements is highly complex, it is very important to choose an amplifier manufactured by a renowned company that has a proven track record in the industry. One such renowned company is the Philips Corporation. The general functioning of an amplifier is based upon its power supply, which is either a true single-ended triode (SET) or a dual-ended triode (DET). A single-ended triode (SET) consists of three transistors linked in a vertical manner to provide a constant current to the amp's speaker. The advantages of using a single-ended triode are that it is easy to control; however it generates higher wattage output than any of the alternative single-ended triodes. Dual-ended triodes (DET) consists of two transistors; however, they are connected in a crossover manner so that the lower wattage level can be supplied to the speakers. An audio phile who is looking to build a good home theater system will prefer a set of monitors and a high quality amplifier. Valve amplifiers, or often referred to as "silent" amplifiers, are very common among Hi-Fi enthusiasts. Due to the principle of valves, their audio reproduction is cleaner and more balanced compared to other types of amplifiers. There is no separate amp or cabinet for valve amplifiers. Instead, all the circuitry is housed in a plastic casing known as a tube amplifier, which basically has two copper tubes (these are called valves) connected to a common center pole. Headphone amplifier is another popular option among those building home audio systems. One advantage of the headphone amplifier is that it can operate even without a power source. On the other hand, its maximum power consumption is comparatively high. headphone amplifiers produce sound by passing audio vibrations through the coupled line into the speaker.Like it? Share it! More by this author |