We produce amplifiers of the configuration you need

Information about JL Audio XD500/3

A 3-channel power amplifier is used in a car system for two speakers and a subwoofer. Any modern 4-channel amplifier can operate in this mode, which is why 3-channel amplifiers are rare these days.

Choosing a 3-channel power amplifier in a car is quite a serious task in which it is difficult to decide personally, since this requires at least listening to several options, preferably in your system, which is quite problematic and, more often than not, impossible to organize in practice. Therefore, when choosing an amplifier, you have to rely on the name and experience of the manufacturer, the advice of honest sellers or installers, and the experience of others.

The most important and basic characteristic that is usually relied on when choosing an amplifier is power. However, it is worth noting that many companies deliberately inflate it in order to mislead the consumer, and some, on the contrary, underestimate it in order to qualify for lower classes of car audio competitions. The power of the JL Audio XD500/3 amplifier should be considered only at its nominal value; maximum and peak power is not a characteristic that should be relied upon. It is advisable to take into account that when indicating the rated power, all serious manufacturers always indicate the THD (nonlinear distortion factor) and the power of different amplifiers can only be compared if its value is equal. It is also worth considering the fuse rating on the amplifier; as a rule, current consumption is the main indicator that indicates power. When choosing an amplifier for acoustics, the sound quality of the amplifier should be considered a more important criterion; power is important for the subwoofer in the system. You need to know that an indicator of the seriousness of the manufacturer’s approach to the manufacture of an amplifier is a certificate with a serial number and a manual measurement of the power of the amplifier that comes with it.

The built-in crossover of the JL Audio XD500/3 power amplifier allows you to cut unnecessary frequencies from the channels. It is used to remove ultra-low frequencies from the subwoofer, as well as mid-bass and everything above it. When connected to acoustics - to cut off low frequencies that the speakers do not reproduce. As an addition, there is a bass boost at the selected frequency and a channel adder. As a rule, it is not enough to install the amplifier correctly in the system; in order for it to play, you also need to configure and regulate it correctly, so the more built-in adjustments on the power amplifier, the better.

Class AB amplifiers have relatively low power, but very good sound quality. Class D amplifiers have high power with low sound quality and are well suited for subwoofers. It is also worth saying that class D amplifiers are quite compact in size.

When choosing a 3-channel power amplifier for a car, you should pay special attention to the manufacturer, his experience in manufacturing amplifiers, the quality of the amplifier itself, how the terminals for connecting the wires are made, and the weight of the amplifier. And of course, buy such a thing that there is no way to check when purchasing, only from honest sellers with more than one year of experience in the field of car audio.

You can obtain the power stated in the characteristics of the JL Audio XD500/3 amplifier only by correctly installing it using the required wire cross-section. Skimping on wiring usually results in the amplifier not delivering what it could. Installation by yourself, without experience, or by an electrician who seems to know everything, but has never installed amplifiers, often leads to such sad consequences as popping noises when turned on, background noise, and poor quality sound.

Car radios have built-in amplifiers, but their power ratings leave much to be desired. Even if the manufacturer indicates the parameter 50×4 W in the passport, it is not always possible to obtain such power in reality. Typically it is in the 20 W range. Many drivers want buy 3 channel amplifiers to unlock the full potential of your speaker system. They help increase sound volume without distortion. And if high-quality speakers are paired with the device, you can increase the detail of the sound and deepen the bass.

What to consider when choosing a car amplifier

One of the most important parameters for choosing devices is their power. Some unscrupulous manufacturers inflate equipment performance by indicating peak power instead of rated power. The latter indicator should be 20-30% lower than the speaker parameter. The presence of a device quality certificate indicating the rated power will confirm that the parameter value can be trusted.

The sound quality depends on the amplitude and frequency parameters. Amplifiers with performance in the range of 20-20,000 Hertz are selected for the car. To reduce the impact of resonance on the body, you can choose an amplifier with a mid-frequency dip. However, it must be without lifting. ULF should be given special attention. It should form a rise in the frequency response at lower frequencies and a decline in the midrange and high frequencies.

The purity of sound depends on the coefficient of nonlinear distortion. This indicator characterizes the sound when changing sound modes. As the parameter decreases, the amount of distortion decreases. Some manufacturers 3 channel amplifiers indicate the total harmonic distortion factor along with the output power. This is quite justified, since defects appear when the channel swings strongly.

The distortion level and efficiency of an amplifier can be determined by its class:

• Class A - devices have low efficiency, they introduce minimal distortion, significant losses in the electrical circuit lead to the fact that they are rarely installed in cars.

• Class B - devices have high power and sound distortion coefficient; they are rarely used in cars. They are chosen by motorists who do not have high demands on distortion.

• Class C - these amplifiers have a high efficiency of 75%, but they cannot boast of low nonlinear distortion. Class C devices do not allow you to get Hi-Fi systems, but with their help you can organize powerful sound.

• Class D - advanced electronic devices; they process the signal digitally. The equipment is compact, distortion is minimal, and efficiency is high. Class D amplifiers are not cheap, but their high technical characteristics have contributed to their wide popularity.

• Class A/B - the devices have good performance for installation in cars: they are powerful even with small nonlinear distortions.

So, which devices should you choose? If you are interested in a low price 3 channel amplifiers, then it is better to purchase class A/B devices. When funds allow, it is worth giving preference to class D products.

The AvtoProfi store offers three-channel amplifiers in a wide range. Here you will find products from the world's leading manufacturers. Contact us! We will help you create truly high-quality sound in your car!

Selling three-channel amplifier based on microcircuitsTDA2050

Output power (nom/max): 3 x 25/35 W per 4 Ohm load

A bipolar switching power supply, based on the IR2153 chip, provides a threefold power reserve. An active cooling system using a low-speed fan at low speeds provides good cooling and very low noise levels.

Speaker protection with connection delay (no pops from transients when turning the power on and off) will reliably protect your speakers, thereby saving them from damage.

Can be used as a preamplifier, for low gain amplifiers, or as a headphone amplifier. It's no secret that not all sound cards provide a sufficient signal level when connecting headphones.

Possibility of connecting three more amplifiers, both for joint operation and only for volume control from one panel. Switchable AC outputs using electromagnetic relays with just one toggle switch.

A connector for connecting a standard power cord, the input is organized on popular RCA connectors (tulips). An additional screw mounting system for the output connector for connecting speakers, headphones and an additional amplifier will ensure reliable contact even under very strong mechanical stress. Duplicate contact groups of the output connector provide reliable electrical contact with a current reserve, thereby reducing the risk of distortion during playback at high power.

The case is made on the basis of a computer power supply case with subsequent painting. Front and rear panels are fiberglass.

The left toggle switch is network. The right toggle switch is to turn off the speakers. The left knob is the volume of mono channel 1. The right knob is the volume of stereo channels 2 and 3. On the front panel there is a network connection indicator on a red LED.

The amplifier body has 4 rubber feet for reliable contact with the surface on which it is installed. The chrome-plated fan grille, in addition to being aesthetically pleasing, reliably protects the blades from unwanted contact with other objects.

The amplifier can also be used in conjunction with a stereo amplifier in a home theater system, in which case it can act as an additional link to amplify the rear and center channels.

It is also possible to connect using a 2.1 scheme, in this case two channels are used to reproduce a stereo signal, and one is connected to a passive or active subwoofer.

It is also possible to connect an amplifier according to a 3+3 or more scheme. The amplifier's low-level output makes it possible to connect up to 60 external amplifiers with an input impedance of at least 1 kOhm (via an appropriate adapter). This scheme is relevant when holding public events and outdoor recreation using a large number of externally connected amplifiers and simultaneous volume control from one point.

Amplifier price =65$

I will send cash on delivery within the territory of Ukraine, to other countries prepayment 100% + cost of postal services.

We produce amplifiers of the configuration you need!

Amazing sound from only 30 rubles!

Description .

By using a 3-channel amplifier with separate volume control by channel, it is possible to achieve a comfortable, uniform sound field in the sales area(s), dividing it into zones with different volume levels. To use 2 types of acoustic systems, for example, and or x for a trading floor, it is possible to design a three-channel amplifier with 2 pre-amplifiers, which makes it possible to set an individual tonal balance, or, for example, use a different source for each channel/zone signal.

The 3-channel amplifier “PA-3” has a built-in microphone amplifier/mixer with a channel/zone selector.

We install a similar three-channel amplifier in the stores of the SPORTMASTER federal chain. Full-range (40 Hz-20KHz) reproduction of audio information in 3 zones, with separate volume control of the zones. Different power per channel - 350W, 150W, 100W. Acoustic systems of 2 types were used: for the sales area and warehouse - from 12 to 43, for the office - from 6 to 12.

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Characteristics.

• Use of technology.
• Frequency range: 10Hz-100KHz.
• Signal to noise ratio > 100dB
• K.N.I.: 0.003%
• It is possible to manufacture with 2-3 tone blocks for simultaneous use of 2-3 types of acoustic systems.
• Damping factor: > 800
• Entrance (not balanced): 1
• Cooling mode: active, 2-mode intelligent.
• Power: 3x100 W, or in accordance with the client’s tasks (up to 600 W per channel).
• Number of channels: 3
  

Based on this model, we will produce a high-quality amplifier, the configuration you require, at an affordable price!

Possible production:

• Only a preamplifier of the required configuration without final amplification and vice versa.
• WITH "dry contact" for connecting a fire alarm.
• With fine-tuned volume control ( switchable).
• With clipping indicator.
• With switchable tone blocks.
• With built-in microphone amplifier with equalizer, mixing, selector.
• With signal source selector.
• With separate pre-amplifiers per channel - work from 2-3 signal sources and/or use of different speaker systems, separate adjustments per channel, etc.
• Waterproof design (for saunas, swimming pools, parks, outdoor screens).
  

Do you have any questions?

Consult our specialists!

Telephone: (906) 296 -58-52 E-mail: [email protected]

Execution options:

Power amplifier for 3 channels, power 3 x 180 W (8 Ohm), class G, frequency range 20 Hz - 20 kHz, inputs: 3 RCA, 3 XLR, 12 speaker terminals, dimensions 433x171x425 mm, weight 18 kg.

The Arcam FMJ P349 three-channel power amplifier embodies the best technologies developed by Arcam over 40 years of its existence. As the developers assure, this powerhouse uses the highest quality elements and the most effective engineering developments.

The circuitry of the model corresponds to class G, which has advantages over the common class AB in terms of more rational power distribution. At powers up to 50 W, the model operates in the preferred Hi-Fi class A with a negligible amount of distortion, and then moves into class G.

The Arcam FMJ P349 power supply unit has a large toroidal transformer installed. The tip perfectly controls any speakers and delivers 180 W to each of the three channels into a load of 8 ohms. When it operates in 2-channel mode with a similar load, this figure increases to 200 W, and in single-channel mode - up to 220 W. The output stage contains fast transistors with minimal noise levels. The harmonic distortion coefficient at 80% power and a resistance of 8 ohms is only 0.001%, and at lower volume levels it is even a millionth of a percent.

The model has an all-metal chassis with excellent acoustic damping. There is a ventilation slot at the bottom of the front panel of the power generator. At the bottom right there is a power button and a switch to standby mode, as evidenced by the LED located in the upper right corner. On the facade there are also two buttons (SP1 and SP2) with LED indicators for sending a signal to the corresponding speakers. For a bi-wiring connection, both buttons must be activated.

On the rear panel there are three balanced XLR input connectors, which are duplicated by a similar number of RCA connectors. A slide switch is used to select between balanced and unbalanced connections. There are 3 RCA outputs (copy the signal received from the unbalanced inputs), as well as two trigger sockets (input and output). To connect the speakers, three blocks of terminals are used (four screw terminals in each block), with the help of which you can organize a two-wire connection for each of the three channels.

The Arcam FMJ P349 delivers realistic, powerful yet detailed sound with impressive precision, dynamics, deep lows and big stage. The model will be an excellent option for both a stereo system and multi-channel installation. To provide full amplification in a home theater system, Arcam recommends using this power amplifier and the P49 2-channel amplifier.

Features of the Arcam FMJ P349 stereo power amplifier
Power 180 W per each of three channels at 8 ohms
G-class operation at high output power, low THD
Toroidal transformer, high-quality components
Balanced and unbalanced inputs, 12 screw terminals for speakers