Integrated Amplifiers: What Are They? The Best Budget Audio Power Amplifiers. Which Amplifier Should You Choose?

2024 Author: Beatrice Philips | [email protected]. Last modified: 2024-01-15 04:10

Everyone, even more or less knowledgeable in the field of sound of equipment, knows that the amplifier is considered a significant part of the audio system. Without the use of this technique, it will not be possible to achieve a full-fledged powerful sounding of the equipment. In this article, we will get acquainted in more detail with the main characteristics and principles of operation of integrated amplifiers.

What it is?

An integrated amplifier is a device that includes a preamplifier, a distributor, and the sound power amplifier itself . All this is collected in a single body. The device is intended to amplify the overall audio signal that comes from the source . The integrated amplifier switches mechanisms, adjusts the sound volume level and controls the entire audio signal transmission process. Next, let's get acquainted with the basic principles of this model.

Principle of operation

A device such as an integrated amplifier serves to convert the shape and magnitude of a voltage. It is also possible to convert an analog signal into a pulse signal for further processing by a digital block.

The physical data and the specifics of the operation of the microcircuits of this amplifier will be more understandable when reproduced using separate elements and circuits.

The use of integrated circuits makes it possible to improve the data of manufactured devices, reduce energy consumption, and increase operating capabilities . Considering all the qualities of such an amplifier, it can be applied in all areas. Integral devices come with a built-in and with a remote power supply and are divided into classes - A, B, AB, C, D.

Species overview

Depending on the elements used, sound amplifiers are divided into several types. Let's consider each type in more detail.

Lamp

These models are created according to the principle of operation of radio tubes. It is they who serve as an element that amplifies the sound . This option cannot provide high power, but at the same time it produces warmer mid and high frequency sound. Thereby technology is more attractive for connoisseurs of quality music, even though it may be difficult to quickly select the right acoustics.

Transistor

A circuit model of this kind involves the use of transistors as amplification devices. They turn out to be more practical and allow you to deliver high power compared to the previous type. Ideal for music reproduction, especially with low frequencies . The bass of the transistor model is crisp and rich.

Hybrid

In these types of devices, both lamps and transistors are simultaneously used to amplify the sound power. By combining the best properties of both technologies, a perfect combination is obtained.

Correctly planned and well-executed mixed models turn out to be versatile.

They perfectly cope with playing music of different directions, regardless of the prevalence of the frequency range. All amplifiers, depending on the number of channels, are of 3 types.

Mono amplifiers . This technique is designed to amplify one channel. Mainly found in high-end equipment or subwoofers for bass processing.

Stereo amplifiers . Two-channel version designed for use in a stereo system.

Multichannel . This type of amplifier is required to obtain surround sound.

The number of amplifier channels when choosing a technique depends on the composition of a particular speaker system. Three-channel and five-channel options are less common than others. Mainly six-channel models are produced to provide home theater sound reinforcement. But there are types with a large number of channels.

The main rule when choosing a technique is to match the number of channels to the number of speakers … More specifically, each column should have its own personal channel. The amplifier should be chosen after purchasing certain acoustics, since the power of the device should be 1.5-2 times higher than the system itself.

Rating of the best models

After reviewing the main characteristics of amplifying equipment, you can proceed to an overview of the best models at the moment in terms of price and quality.

Marantz PM- KI Pearl Lite

This model has a powerful sound amplifier and is more suitable for advanced users. This technique is equipped with a liquid crystal display, additional controls, high-quality lighting equipment.

The device looks very stylish and will be combined with any interior. The amplifier has a high quality build and additional copper coating.

There is a wide range of controls that an inexperienced user can handle.

Advantages:

• appearance;
• power parameters;
• coordination of sound;
• high quality build.

The disadvantage is the simple model of the control panel

Parasound 2125

This option is not worse than the previous one. It has a very high quality, energetic, dynamic, but at the same time soft sound. Therefore, listening to music is pleasant even in intensive mode. Given the excellent sound quality, the bass is heard at a high level.

Advantages:

• the possibility of sound detail;
• excellent activation of acoustics;
• active sound;
• output efficiency.

The disadvantage is the high cost of the amplifier

Unison Research UNICO Secondo

The model of this manufacturer is considered the best in the tube category. A technique with detailed sound that is soft, suitable for listening to classical music. The device with conveniently located controls looks great on the outside.

Using the included remote control, it is possible to adjust any parameters, including bass.

Advantages:

• clear sound output;
• high performance data;
• simple adjustment and connection;
• ideal parameters.

The disadvantage is the manufacturer's price policy

Onkyo RA - MC 5501

Due to its high characteristics, this amplifier is in the TOP of similar devices. This model is more suitable for large home theaters. The technique produces an assertive sound that can be controlled. The high quality of the device justifies the expensive cost.

Advantages:

• high quality sound;
• purity of sound;
• high performance data;
• operational reliability;
• system consisting of 9 channels.

The disadvantage is the high price

Denon PMA-720 AE

This technique makes you fall in love with its impeccable sound quality. Indicator lights and a knob are located on the front panel. Controlled by the remote control. According to users, the device produces luxurious bass. This is explained by the fact that the amplifier should be warmed up before starting work. This will take about 15 minutes. After this procedure, there will be perfect sound, pleasing the ear of every listener.

Advantages:

• balance of price and quality data;
• high production capacity;
• ease of management;
• juicy bass.

The disadvantage is prolonged heating

NAD C275 BEE

This model is optimal for use in stereo sound. Its peculiarity is that the device is capable of linking 4 channel streams into 2. It also stands out with excellent power data and is able to detail the sound.

Compared to analogs, users like the small size, even though the power supply is inside the device. The maximum power of the model is 95 W.

Advantages:

• compact size;
• excellent power characteristics;
• impeccable bass;
• built-in power supply.

The disadvantage is heating

Fiio A3

This amplifier is considered one of the best when it comes to amplifying the sound of headphones. Has the ability to adjust bass and behaves well when used in conjunction with players. Optimal connection to a linear output. It has a small size, which makes it possible to carry it in your pocket without discomfort.

Advantages

• budget price;
• harmonization rate 0.004 percent;
• small size.

The disadvantage is the weak battery

Fiio E 18

This device is ideal for use with portable gadgets. The amplifier will act as a conductor between the headset and the phone.

Advantages:

• multitasking;
• quality characteristics of playback;
• performing battery options;
• small dimensions;
• the ability to connect to different devices.

No disadvantages were identified

Parasound 2125

The device is powerful. Its rich sound will appeal to all music lovers.

This is ideal for fans of hard rock and similar styles.

Advantages:

• sound output;
• dynamic data;
• excellent swinging acoustics.

The disadvantage is the high cost

Fiio E12 Mont Blanc

This amplifier is needed for a headset. It differs from analogs in the presence of connectors, has a small size. Can be easily connected to tablet, smartphone and other similar devices. But in the case of a laptop or computer, there will be little effect. There are no indicators and speakers on the model, but deep playback takes place.

Advantages:

• optimal power data;
• small size;
• great sound;
• the presence of sound detail at the output;
• can serve as a charging device.

There are no disadvantages

Before purchasing an integrated amplifier, it is worth considering some aspects, such as: calculating the finance for the purchase, the requirement of the future owner, the reliability of the manufacturer, and more.

How to choose?

An amplifier is a necessary part of a speaker system, providing source selection and signal level control. Almost every modern professional audio system comes with a loop-through output, which is used when connecting subwoofers and satellites. Specifically, it is necessary to decide in favor of this or that device, taking into account the needs. Let's consider the basic rules.

• You should not buy too cheap models, as it is unlikely that in this case it will be possible to get the desired quality.
• It is necessary to purchase such complex equipment at a retail outlet with the possibility of verification, preferably having previously determined with a specific model.
• The amplifier should be chosen taking into account the power reserve, so as not to operate at maximum capabilities in the future, in order to avoid a decrease in the reliability of the device. For example, a model with a maximum power of 100 W will provide continuous and high-quality work, only having about half the power.
• It is imperative to take into account the area of the room in which the sound equipment will operate. The approximate power of each channel should be 3-5 watts per square meter. If the footage is up to 15 sq. m, then you need to take into account the first figure, and for areas exceeding 20 sq. m is the second indicator.
• It is preferable to choose a technique in which the acoustics are connected not using spring latches, but using terminals with screw clamps. Such a mount will be more reliable, indicating the technical characteristics and belonging of the device to the Hi-Fi class.

Considering all the characteristics and capabilities of a particular amplifier, the specific choice remains with the future user.