4-channel amplifier - The powerhouse for speakers
Powerful and unadulterated sound enjoyment is an indispensable element for many drivers. To meet the special sound requirements, the use of amplifiers is necessary
.. The following article provides information on how a
4-channel amplifier for acoustic power in the car. When it comes to 4-channel amplifiers, 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?
A car radio, also known as a head unit, delivers an output of 12 - 16 watts per channel, depending on the manufacturer and model. However, this power is sufficient to operate
powerful sound systems is not enough. The subwoofer in particular is the strongest link in the chain and requires several thousand watts, depending on the type of speaker. A 4-channel amplifier has four outputs for two pairs of speakers or one pair of speakers plus one subwoofer.
Subwooferor a loudspeaker system in the front and rear or the rear shelf. Basically, an amplifier has 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 is connected to the battery. 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 cable.
How does a 4-channel amplifier work?
An amplifier picks up a small voltage and passes on a larger voltage to the speakers. 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. Especially 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 can be connected to the amplifier. 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 speakers. The output power per channel depends on the level of electrical resistance, which
in technical jargon as impedance is called. Speakers 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 recommended for a 4-channel amplifier. In order to route the correct frequencies to the appropriate elements of the loudspeaker system without distortion
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?
Masori currently offers 4-channel amplifiers 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 suitable amplifier for every project.
4-channel amplifier with the right output power and a wide frequency range. To guarantee the production of a high-quality sound, consumers should ensure that the amplifier and speakers are matched in terms of impedance, power and frequency range.
