Choose to buy a power amplifier or a karaoke amplifier?

Choose buy amplifier or amplifier for karaoke system is a question that many people wonder. To answer this problem, let's Phuc Truong Audio Find out what features the amplifier has, and should you use the amplifier to replace the current amplifier?

Although the power amplifier has been introduced to Vietnam for a long time, many users are still very unfamiliar with this device. There is not much information to help users who want to buy this device, they have to search very tiredly. Questions before buying a power amplifier will help you answer some of the questions and concerns about the power amplifier you are interested in.

What is a power amplifier? Is it necessary?

Power amplifiers, or simply power amplifiers, audio amplifiers, are devices used in sound systems that amplify audio signals to transmit sound from speakers to the listener's ears. They are most commonly used in large sound systems such as professional karaoke sound systems, stage sound systems, halls, and bars. The biggest reason for using power amplifiers is because they can completely handle 4-5 pairs of high-power speakers. They complement the sound system very well and bring listeners realistic sound.

You can refer to the top power amplifiers in Vietnam  The current: Push Cavs Z800

PTG buys and sells genuine karaoke power amplifiers No. 1 in Vietnam at competitive prices, many great discount policies for amplifier business brothers, diverse brands from China, Japan, Vietnam... with 2-channel amplifiers, 4-channel amplifiers for karaoke systems or professional sound systems for stages, live music systems...

It is not necessary if you do not have a large capacity speaker system. If you own a pair of high capacity speakers, you must own an amplifier immediately. Because the amplifier alone is difficult to carry a pair of high capacity speakers. Therefore, you need to consider how much capacity you are using, using 2 pairs of speakers or just 1 pair, whether you need better sound or not are all questions that you must ask before buying a power amplifier.

How many types of power amplifiers are there?

There are two ways to classify power amplifiers including classification by usage features and classification by power transistors.

Classified by usage features based mainly on the number of channels and capacity of each channel. If classified like that, we have common names such as 2-channel amplifier, 3-channel amplifier, 4-channel amplifier. 2-channel amplifier is designed for 1 pair of speakers, their capacity is often quite diverse and ranges from 200W to 800W per channel. Most karaoke speakers today have a capacity of 100W - 500W each. This type of amplifier is often not strong when installed in large systems but they are more suitable for family karaoke systems. 3-channel amplifier includes 2 channels for full speaker systems and 1 channel dedicated to subwoofers. The characteristic of this type of amplifier is that they are integrated, so they help optimize space and save costs effectively. 4-channel power amplifier is used to connect 2 pairs of speakers to provide rich, powerful sound for you. But that said, they only work well when the space is larger than 30m2. The sound of this amplifier line is very good when running in Bridge mode, it will bring a really strong and lively sound.

The main function of the amplifier is to amplify the signal to the speaker, of course their efficiency is much higher than that of the amplifier and can carry more speakers.

When there is a power amplifier, the sound will be increased quite a lot when it is pushed out stronger and more decisively. It is true that the amplifier is also a device that can carry the speaker system quite easily, but they cannot increase the power of the sound system. So when building a family karaoke system, you should think more about the power amplifier.

Besides increasing the capacity, they also reduce the distortion of karaoke speakers quite a lot, thereby providing a smoother experience.
Should I buy a used power amplifier or not?

Used amplifier is a term used to describe used power amplifiers, so whether to buy or not depends on your intention. The advantage of used amplifiers is still capable of delivering great sound. They have the ability to pair quite effectively, the ability to operate at high power and intensity for a long time is still guaranteed.

For branded used power amplifiers, there is less risk of being scammed. However, before buying, you should check the sales address, the appearance, the interior and most importantly the sound quality. If everything is good, you can buy it right away.

There are 3 main amplifiers, most popular on the market

1. 2 channel amplifier
2. 3 channel power amplifier
3. 4 channel amplifier

What should you pay attention to when buying a power amplifier?

First, you must pay attention to the power level, the power amplifier depends on the power of your speakers quite a lot. Normally, you should refer to the power levels of the speakers to see which type of power amplifier is suitable. It is best to choose a power amplifier at a moderate level to use it reasonably without causing waste. 20cm bass speakers will usually have a capacity of 100W - 300W, 25 bass speakers have a range of 300W - 500W and larger than 30cm bass level, then calculate from 600W or more. Attached subwoofer should be over 1000W.
The impedance of the speaker must be equal to or greater than the impedance of the amplifier, otherwise it will lead to overload and burn the amplifier. If the speaker has high sensitivity and impedance, then only a low-power amplifier is needed. When you have a 4 Ohm impedance speaker with a sensitivity below 90 dB, then you need a higher-power amplifier.

Sound quality is relative, it depends on many factors and your taste in music. This factor is personal to you and there is really no standard to judge this. Just listen to what you like. Stability and protection features for other devices will need to be noted to ensure that they do not burn out a pair of your speakers in a flash.

Is it necessary to buy a branded power amplifier?

Whether the power amplifier is branded or not depends a lot on your finances. Sometimes if you don't have the finances, it will be difficult to follow the brand. It is true that branded power amplifiers will produce better sound quality. But today, young companies specializing in power amplifiers have also made great strides to satisfy users.

Feel free to try a local brand if you feel that all the criteria you set out are fully met by that brand. Of course, the price must be good for you to try like that. When you have a more stable financial source, a genuine, branded power amplifier is extremely good.

What is a reasonable price for a power amplifier?

Power amplifiers have many different price ranges and are suitable for you at all levels of money. In the price range of over 4 million - 5 million, you will find amplifiers at quite cheap prices for you to invest in a power amplifier. At this price range, you will have many brands to choose from including EV, Yamaha. The mid-range from 7 million to about 10 million, you will own amplifiers with very high power levels and suitable for mid-range karaoke systems in the family. The high-end range of 10 million or more will be the high-end line and bring you the most powerful and compact sound experience.

Harmful habits with power amplifiers?

There are some habits that will harm your power amplifier, including objective and subjective factors. If you use the amplifier in a highly oxidized environment, it will affect their durability. But fortunately, now all brands have produced according to high anti-oxidation standards, so now you can rest assured.

You should use it reasonably and avoid using the power amplifier too much and when you finish using it, remember to turn off the karaoke system to ensure more effective operation next time. At the same time, you should try to place the power amplifier in suitable places, avoiding electronic devices with high interference potential such as refrigerators, computers, wifi transmitters, etc. because they have the risk of reducing the life of the power amplifier.

Where is the power amplifier usually damaged?

power cord 3

The common failures that you will often encounter with power amplifiers are mainly related to the source, indicator lights, and Power switches. Some failures are due to the power circuit having the wrong polarity, leading to DC voltage leakage to the speaker. This circuit helps to safely protect the speaker load from the machine. Another common failure is the adjustment circuit failure due to the user not adjusting the music and Master volume or due to the potentiometers themselves being damaged or having poor contact. Failures due to signals from the music player and errors in connecting wires and jacks from the player are also the reasons why power amplifiers are easily damaged.

How to clean power amplifier?

Regularly clean by blowing as much dust out of the power amplifier's slots as possible. Disassembling removable devices and blowing dust before reassembling will help the power amplifier last longer.

Power amplifiers suitable for 2 3-inch speakers

Introducing some power amplifiers suitable for 3-inch full karaoke speaker pairs with capacity from 250w - 350w

BFAudio T5 amplifier

CAVS Z800 Power amplifier with integrated power management

CAVS X2 2800-channel power amplifier

CAVS DK2 2700-channel power amplifier

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