5 Mins, Know More About A Professional Grade Audio Amplifier

By hqt


What Is A Power Amplifier? Which Type Of Amplifier Is Better?

Power amplifiers are the main components of a sound system. They provide power to speakers and subwoofers, boosting the volume and creating a rich sound. If you want to upgrade your sound system, then you need to get a high-quality power amplifier.

There are two types of power amplifiers: Class-D and Class-AB. In this article, we are going to explain how each one works and which one is better for different applications.

Class D Amplifier:

A class D amplifier uses digital pulse width modulation (PWM) to convert a digital signal into an analog waveform that can be amplified by the loudspeaker. This type of amplifier is ideal for low-impedance loads like subwoofers because it doesn’t require any output devices other than transistors or op amps, which results in lower distortion levels compared with class A/AB amplifiers.

Class AB Amplifier:

Class AB amplifiers use bipolar transistors or MOSFETs as output devices, which means they have more complex circuitry compared with class D amplifiers. But they also generate less heat. Because they don’t have to switch states very often as class D amps do. These types of amps are commonly used for powering high-impedance speakers such as tweeters or mid-woofers.

In addition to this common classification, power amplifiers can also be divided into active and passive. They can also be split into analog and digital versions depending on the type of technology used to generate the output signal. The input signal may be unbalanced (single-ended) or balanced (differential). It may also be single-phase or multi-phase in its operation.

How Many Watts For A Professional Grade Audio Amplifier Do You Need?

The main function of a Professional Grade power amplifier is to increase the amplitude of an input signal so that it can be sent further via a speaker cable or other transmission line without any loss in quality. The power amplifier also allows for the adjustment of volume levels, bass and treble settings, etc.

For different music genres, you will need Professional Grade audio amplifiers with different wattages. Such as guitar playing in the small bar, jazz music, and rock music in the dance hall. Here’s an introduction to some of them:

1. Guitar Playing in Small Bars: 100-150 watts per channel.

If you play acoustic guitar in a small bar or restaurant, then you can choose a 100-watt amplifier that can produce clean tones and allow you to play all kinds of styles.

For example, if the venue is only used for dinner time and the audience is not very large, then it is enough for 100 watts of power output to bring out all kinds of styles (such as jazz, blues, rock, and country). In addition, it can also be used as an electronic device for other purposes such as singing karaoke or playing video games on TV sets.

2. Jazz Music Amplifier (50W):

The 50W amplifier is suitable for playing jazz music. It can provide a sound field with a smooth feeling and good-quality sound effects. It can be used for large-scale venues such as concert halls or theaters. If the venue is not big enough, you may need more than one amplifier to support each other.

3. Amplifier wattage for big band performances: 600W

Big band performances are one of the most popular genres for live shows. To get the best sound quality for this type of performance, you will need an amplifier with at least 600 watts. The reason behind this is that it has to be able to support all the instruments that are used in a big band performance. The instruments included in a big band include drums, horns, trumpets, saxophones, trombones, and so on. All these instruments require a lot of power from your amplifier to produce the best sound quality possible at your venue.

Professional Grade Audio Amplifier

Do More Powerful Amps Sound Better? Why?

The answer is yes – but not necessarily for the reasons, you might think. The sound of an audio amplifier, whether it’s a cheap one or a high-end model, is largely determined by the power supply, not by its output power.

The power supply is what provides voltage and current to the amplifier’s circuits. It does this by converting AC to DC and storing that energy until it’s needed. In most cases, this requires a transformer to step down 240VAC to 12VAC or 5VDC.

When an amplifier needs more power than its power supply can provide, it will clip – meaning that the signal being amplified won’t be reproduced accurately and may even cause damage to speakers or headphones. This is why it’s important to match your amplifier with speakers or headphones that require similar amounts of power.

Let’s take a look at some other features that you should pay attention to when choosing an amplifier:

1. Signal-To-Noise Ratio (SNR)

This is an important factor when choosing an amplifier. Because it will determine how much distortion there will be in your sound quality as well as how clear your music will be played back through your speakers. The higher the SNR rating, the better quality sound you have.

2. Total Harmonic Distortion (THD)

The THD measures how much distortion there is in your audio output from an amplifier due to non-linearity in its circuitry. It is measured in percentage and ideally, it should be less than 0.1%. The lower the THD number, the better the quality of sound produced by your amplifier.

3. Frequency Response Range

This is how much amplitude or volume an amp has to produce at a particular frequency. The higher this number is, the louder it will be at that particular frequency. You’ll want a good amplifier to have a frequency amplitude response of between 100 and 200 decibels (dB).

How To Match Your Audio Amplifier And Speaker?

If you have a Professional Grade audio amplifier, do you know how to match your speakers to it?

Professional Grade audio amplifiers are designed to deliver maximum power and clear sound. It is important to match your speakers with the amplifier. The speaker and amplifier should be matched according to their power handling capacity, impedance, sensitivity, and frequency response.

1) Power Handling Capacity:

The power handling capacity of a speaker is the maximum amount of power it can handle before it gets damaged. For example, if you have a speaker with a power handling capacity of 300 watts then it means that this speaker can handle 300 watts of power without getting damaged.

2) Impedance:

The impedance of a speaker determines how much current will flow through it at any given time and also how much voltage will be required for driving this speaker. You should always choose an amplifier with an impedance match to your speakers’ impedance ratings. This will help in reducing distortion and maximize the efficiency of the system overall.


Sensitivity refers to the loudness of a speaker given a certain input voltage or power. It is measured in decibels (dB). The higher the sensitivity rating, the louder it will be at lower volume levels. So if you want a more powerful sound, choose an amplifier with a high sensitivity rating.

4)Frequency response:

The frequency response of an audio system is the range of frequencies (from low to high) that it can produce or reproduce accurately at different sound levels. This means that an ideal audio system will have no frequency gap or limitation when producing or reproducing sound. Frequency response is measured in Hertz (Hz) and usually ranges from 15 Hz to 20 kHz or higher depending on how much you are willing to spend on your system. 

Final Words:

GEDI-G is a company specializing in the production of audio equipment. Their years of experience make their products the choice of many professionals. Their amplifiers are made of high-quality materials. The body of the device is an aluminum alloy panel, and the appearance is a nice metallic light. It is also very durable and corrosion-resistant. This means they are ideal for both indoor and outdoor environments.

At the same time, the parameters of these devices are produced in strict accordance with international standards. For example, the power amplifier of GEDI-G has an SNR greater than or equal to 80 dB. So, you can trust their products!

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