The subwoofer is considered an important part of the speaker system. Without it, it is difficult to use a home theater. This element works out low frequencies, which full-size stereo systems cannot handle. On some equipment, these settings make playback clear. A home active sub does not affect the physical organization of the system too much.
Equipment can be placed anywhere as it is compact. This is due to the fact that no matter where it is, the signal will still be picked up. But still, proper configuration and connection of an active subwoofer is required. You need to familiarize yourself with some of the intricacies of the work.
Features
The main difference between active and passive subwoofers is the presence of an integrated power amplifier. Because of this, the equipment removes the low-frequency load from the main amplifier. The device also has an active crossover that filters high frequencies, making it easier to match equipment with broadband acoustics.
Some devices have additional functions. An active subwoofer, the price of which is in the range of 30 - 35 thousand rubles, includes adjustmentfor different operating conditions. Such equipment is not considered premium, but has a middle class. It has support for frequency spectrum adjustment, phase rotation, crossover point position adjustment.
Connection
Amplifiers often have the PCA channels needed to connect active subwoofers. Some devices are even equipped with multiple inputs, which expands the acoustic possibilities. The user needs to prepare an RCA cable of the appropriate length, and then connect it to a suitable connector. Most people have no problems connecting.
If you use 2 inputs, you will need a powerful active subwoofer that works with a splitter cable. This method of interaction doubles the input sensitivity, but this will not have much effect on the sound. The subwoofer comes with a left and right channel.
If you use such acoustics, then you need to choose the right cable. It is best to purchase a solid copper wire that preserves signal volume. If a budget active subwoofer is used, then the increase in performance does not make sense.
Connecting to output terminals
How to connect an active sub in another way? For this, the main output terminals are used. The speakers are attached to the high level outputs on the subwoofer. In front of the terminals are high-pass filters that provide 6 dB.
The system has a slight pressure on the acoustics in the low frequency range. But when connecting an activesubwoofer using output terminals should take into account the minus of such a scheme. If the described connection option is used through the direct outputs of the terminal and subwoofer filters, then you can get the best sound with a small error. But since the connection channels work in parallel, the entire load increases.
Settings
Basic equipment setup is based on acoustic characteristics. That is what you should be aiming for. The setting is adjusted in the audio crossover and phase switch parameters. But before calibration, you need to check the quality of the connection. Connection node optimization is also required.
There is a home active subwoofer with wireless connection. In this case, conventional cables are not needed for connection, since radio sensors are used for this. It turns out that it is necessary to synchronize equipment using Bluetooth or another wireless connection. Many users believe that the equipment will work correctly if everything of high quality is purchased for the system.
Crossover
Adjust the crossover to set the subwoofer separation frequency spectra. This control allows you to tune the equipment over the entire range. Some devices have an extreme frequency at which the equipment is not perceived by the human ear.
The classical value is 80 Hz. You should deviate from this indicator only when there is a booming bass. In this case, you need to lower the frequency with the regulator.
Phase switch
The switch is needed to compensate for the difference between the system setting. It is also needed in coordinating signals from various satellites. The subwoofer setting must be performed when playing excerpts with a male low voice. The user should select a mode where vocals are heard naturally.
How is distortion corrected?
Even in expensive equipment, the sound is not always absolutely clear. But such problems are eliminated. For example, hum appears due to dispersion in the wires. In this case, the quality of the cable is important. Therefore, you need to purchase a new wire or adjust the volume.
Powerful equipment should be powered up with high quality thick RCA cables. They must have a shielding function. Among users you can find different reviews. Many cancel that there is a loud hum. The current filter in the cable will fix the problem.
Choice
A good system can have average performance. If everything is connected correctly, then this will allow the equipment to work without interruptions. Powerful subwoofers are sold at a price of 50-60 thousand rubles. Such systems cope with their tasks. But you can also purchase an economy model, which is similar in parameters to the head unit. It turns out that the price is not always the main criterion.
When choosing, you must consider the material. Although plastic is in demand, wooden subwoofers are still popular. According to user reviews, it can be seen that the system is made of natural materialbetter suppresses vibrations, and also evenly distributes the signal. But wood is not as practical as plastic.
An active and passive subwoofer can be used for the home. The latter system has one or more low frequency speakers. It requires an external amplifier and audio crossover to operate. Both types of equipment are used to obtain high-quality sound. Active subwoofers are more suitable for this. When properly connected and configured, the equipment provides excellent sound quality.
