4-channel amplifier - The powerhouse for speakers

Powerful and unadulterated sound enjoyment is an indispensable element for many drivers. In order to meet the special sound requirements, the use of Amplifiers necessary.. The following article provides information on how a 4-channel amplifier for acoustic power in the car. In the 4-channel range Amplifier many of our customers rely on the proven brands B2 Audio, Vibe Audio and Pride back. High-quality products are also available here for little money, such as the Vibe Audio "POWERBOX65.4M-V7" or "QUATTRO PLUS" from Pride. If you want to spend a little more, the B2 Audio "RAGE 1000.4 MI" a very powerful compact amplifier with low voltage and clip protection circuitry that will undoubtedly enhance your system.

What is a 4-channel amplifier?

Depending on the manufacturer and model, a car radio, also known as a head unit, delivers an output of 12 - 16 watts per channel. However, this power is sufficient to operate powerful sound systems is not enough. Especially the Subwoofer is the most powerful link in the chain and requires several thousand watts, depending on the type of loudspeaker. A 4-channel Amplifier has four outputs for two pairs of speakers or one pair of speakers plus one Subwooferor a loudspeaker system in the front and rear or the parcel shelf. Basically, a Amplifier three main connections for the power, which consist of remote, ground (GND) and +12. Communication between the car radio and the power amplifier takes place via the remote connection, which in most cases is realized via a blue-white wire. The GND connection serves as the negative pole and is connected to the body of the vehicle. The +12 connection is used for the power supply, via which the Amplifier with the Battery is connected. In most cases, the music signal is fed into the amplifier via an RCA cable or a high-level speaker cable. In rare cases, this can also be done via Bluetooth or Optical Cables happened.

How does a 4-channel amplifier work?

A Amplifier absorbs a small voltage and supplies a larger voltage to the Loudspeaker further. This process is based on transistor circuits and operational amplifiers. The circuits used in the 4-channel Amplifier transistors are electronic semiconductor elements that are responsible for amplifying currents and voltages. As the way these components work differs depending on the model, power amplifiers are divided into different classes from A - D, whereby the most popular version of the AB amplifier is. This type generates a distortion-free audio signal due to a constant transistor voltage. At the same time, the power consumption is lower than that of a class A amplifier. The exception is the class D amplifier, which is a digital audio amplifier that deviates from the principle of a simplified transistor circuit. In terms of sound reproduction, AB amplifiers have the edge. Particularly with the tweeters and mid-range speakers in the front system, a Precise sound reproduction is an important factor. However, modern digital amplifiers in the upper price segment impress with a high efficiency of up to 90 percent and generate less heat. In addition, digital amplifiers have high-pass and low-pass filters for a precise sound image.

4-channel amplifier - what to look out for when buying

Before buying, it should be clear how many Loudspeaker on the Amplifier can be connected. An important factor with a 4-channel Amplifier is that the output power (RMS) of the individual channels is in proportion to the sound system. For optimum listening pleasure, the amplifier power should always be greater than that of the Loudspeaker be. The output power per channel depends on the level of electrical resistance, which in technical jargon as impedance is called. Loudspeaker in the car hi-fi sector usually have an impedance of between 2 and 4 ohms. A high resistance results in a lower current flow, which is why both sides should have a low resistance value. However, it is important to avoid falling below the minimum resistance, which is particularly important when bridging two stereo channels. In addition, a wide frequency range and a frequency range that matches the connected loudspeakers are important for a suitable sound system.

4-channel amplifier - Our professional tip:

A frequency spectrum of at least 20 Hz - 20 kHz is required for a 4-channel Amplifier recommended. In order to direct the correct frequencies to the appropriate elements of the loudspeaker system without distortion, we use Low and high pass filter is used. It is also important to ensure a low distortion factor below the perception threshold of 0.1 %, which is usually referred to as THD or distortion factor.

Which manufacturers does Masori distribute?

With Masori are 4-channel Amplifier currently available from the following manufacturers: ARC Audio, Audio System, Awave, B2 Audio, Blam, DD Audio, DLS, Edge Car Audio, ESX, FOR-X, Ground Zero, Hifonics, JL Audio, Kicker, Morel, Musway, Pride, Rockford Fosgate, Soundigital, STEG, Stetsom and Vibe Audio.

Conclusion

A 4-channel Amplifier is ideal for operating a front system in combination with rear speakers. Our store offers a speaker for every project 4-channel amplifier with the right output power and a wide frequency range. In order to guarantee the production of a high-quality sound image, consumers should ensure that Amplifier and Loudspeaker are matched to each other in terms of impedance, power and frequency range.