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The subwoofer for the house can be of two kinds:
- Active. This type of device has a built-in power amplifier and an active crossover that filters out high frequencies. These systems are ideal for home theatre applications because they are quite flexible and easy to install. A separate plus is the relatively low cost of the devices.
- Passive. This type of subwoofer does not have a built-in power amplifier, so it needs to be connected with the main stereo speakers. The main disadvantage of the passive system is the additional load on the output amplifiers of stereo channels.
The most convenient and suitable for home subwoofer is an active subwoofer. This is explained by the built-in bass amplifier.
Main characteristics
- Subwoofer is a device that provides a high quality effect of presence, for example, while listening to music or watching movies. Such equipment in the shortest possible time gained popularity and became one of the most important parts of the acoustic system. When choosing a home subwoofer, you should first of all pay attention to such characteristics as purpose and power.
- The device reproduces low frequencies (approximately 20-160 Hz), which are difficult for a person to localize. One of the main problems of such a system is a poor connection between the frequency response (amplitude-frequency characteristics) and the frequency response (phase response) of the subwoofer and satellite. For this reason, some low-frequency audio devices have the function of adjusting the upper limit frequencies and phases.
How to select the correct one
Before choosing a subwoofer for your home, pay attention to the following points:
Frequency range (Hertz). The frequency range that the subwoofer can reproduce is divided into three octaves: deep bass (20 to 40 Hz), middle bass (40 to 80 Hz), high bass (80 to 160 Hz). These devices work in the range from 40 to 200 Hz. The best devices can reproduce deep bass (if available in the audio recording).
The highest sound pressure. The highest volume level of the device.
Sensitivity (Decibels). A high level of decibels means that the amplifier that is built into the unit is not used in an off-the-shelf mode. Higher sensitivity makes it easier to transfer the load from the subwoofer.
Diameter of the subwoofer.
Frequency of spectrum splitting by crossover. If this frequency is 80 Hz, then all frequencies that exceed 80 Hz are attenuated in the signal that is fed to the device.
Before choosing a device, perform a subwoofer test to determine the best model. To do this, pay attention to the direction of the device, which can be directed down or sideways.
If the device is directed downwards, the sound waves propagate evenly, but their quality will depend on the floor covering. The sideways direction makes the sound cleaner and better.
In addition to the test, it is worth considering the subwoofer tops below to compare performance and choose the best option.