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Subwoofers, also known as subwoofers, are indispensable speakers in today’s professional sound systems. However, many people do not know what the use and purpose of this type of speaker is. Let’s find out with thtrangdai.edu.vn what a subwoofer is? How to install the subwoofer for the best sound in the following article!
What is a subwoofer? Structure of subwoofer
The subwoofer belongs to the subwoofer line, this speaker line is manufactured to create the lowest sound frequency from which listeners can hear sweet, loving sounds with a unique style design. The subwoofer has a separate function to create sound at low frequencies from 20 – 200Hz (bass), the sound will produce strong quality.
When used correctly, this subwoofer integrated with the sound system will improve the quality of the sound system. Depth and width give a better soundstage and can reduce harsh noises.
KLIPSCH R-100SW Subwoofer
The subwoofer consists of 3 main parts: speaker cabinet, speaker core, and connection wire. In the speaker core, many woofers are linked together to form a subwoofer placed in a speaker box and made of high-quality wood with extremely good resistance.
Speakers have quite diverse designs, depending on the type of speaker, there will be different materials.
Uses of subwoofer
With their popularity in theater, stage and home karaoke sound systems, these types of speakers are responsible for different sound channels: center channel, surround effect channel,… the use of sound reproduction speakers. Bass in a sound system is essential.
The subwoofer will support the bass, the sound will be warmer, the bass will be deeper and thicker making the sound more realistic, the microphone will be more sensitive and better.
In particular, bass is always the best sound in a music listening sound system, the subwoofer plays an important role in helping to fully convey all the sound levels of the music being played, making the music strong. Stronger, more powerful, but softer and deeper thanks to the low frequency from 20 Hz – 200 Hz.
Klipsch SUB100-BK subwoofer
The main use of a subwoofer is to fully exploit the uses and applications of other audio systems. Subwoofers are specialized for playing music at the low frequencies needed for quality orchestras.
Classification of subwoofers (subwoofers)
Based on speaker power
Subwoofers are divided into two types based on speaker capacity: active subwoofers (electric subs) and passive subwoofers (air subs).
- Active subwoofer (electric sub):
Active subwoofers are integrated types that connect to a separate amplifier system right inside to create bass signals. People often use subwoofers in cases where the amplifier and receiver in the audio system do not meet the conditions to create bass.
The special thing is that you can connect the active subwoofer to the audio system without the need for cables.
Electric subwoofers are manufactured and have pre-designed internal power circuits, you do not need to connect them to the amplifier, just connect the audio signal to the input to use.
Jamo C910SUB subwoofer
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- Passive subwoofer – air sub:
Passive subwoofers are speakers that do not have an integrated connection to the internal amplifier system, requiring the addition of a separate amplifier or accompanying power to provide additional audio signals. When using air speakers, you need to prepare and connect more elaborately than electric speakers.
Jamo C912SUB subwoofer
Based on design
Based on the design of subwoofers, there are 3 main types: isostatic sub, box sub, and vented sub.
This isometric speaker has a special design with 2 bass speakers arranged in symmetrical positions. With proper arrangement, sound waves can be created to move and collide with each other. When the sound flow moves in a narrow space, it creates collisions that create extremely strong bass, so high-class subwoofers are often used in karaoke spaces, discos, etc.
Boxed subwoofer
This speaker line is not too different from other sub speakers. The speaker is designed with a speaker box that is a metal block, in a discreet box, connected with a Woofer to connect to the outside.
The subwoofer has vents
This line of speakers is special because the speaker’s box has a small hole, the function of this hole is to ventilate and ventilate strongly. It is the ventilation that creates stronger bass, giving listeners a greater feeling. This vent can be placed in front or behind the speaker.
For subwoofers with vents arranged in small, narrow spaces, the vents are usually placed in front of the speaker.
Tips for choosing the right subwoofer
Choose the appropriate speaker size
The choice of speaker size will reflect the quality of the depth that the bass emits. If you use it to watch movies, you should prioritize choosing speakers over 15 inches in size. The bass will be pushed down low so when listening to music you will not hear the bass.
If you want to buy a speaker for family karaoke or business karaoke in an average room area, you should choose a speaker with a size of 10 – 12 inches.
Ensure harmony of the subwoofer and the entire system
You should check the harmony of the subwoofer with other speakers in the system in the family karaoke system to avoid waste and ineffectiveness of the subwoofer.
For example: A subwoofer has a frequency range of 40Hz but your speaker system only has a frequency range of 45Hz, which will waste the effect of the subwoofer. However, if you use speakers with a frequency range of 65Hz, it will create a different sound system.
Buy a complete speaker system from one manufacturer
When you buy a complete speaker system from one manufacturer, it will definitely create subwoofer harmony with other sound systems, which can easily interact with each other.
If you choose, you should consider choosing speakers according to the subwoofer. If you use a subwoofer, you should pay more attention to the amplifier’s capacity and should choose an amplifier capacity larger than the subwoofer’s capacity.
This will ensure that the speaker system operates uniformly, creating round, full and clear bass. In case, you do not have experience buying a subwoofer, you should choose an electric sub that is easy to achieve efficiency when used.
How to install a subwoofer for the best sound
Speaker installation location
The purpose of the subwoofer is so that listeners can have fuller bass, so you should find a position so that the speaker’s bass is suitable and harmonious with other audio systems, especially speakers. You should place it about 30cm to 40cm above the ground because at such a height you can maximize the speaker’s capabilities.
You should place the subwoofer not too far from the left and right speakers. Subwoofers with a diameter of less than 20cm are often chosen to be placed near the main speaker with a distance of 0.9 – 1.2m to work most effectively.
If you place it too far from the main speaker, the bass will not be effective, leading to a fragmented sound and lack of connection.
When finding a location to place the subwoofer, you should turn up the volume to make it easier to find a spot for big bass, but the remaining sound ranges are still rich in detail. Because if installed incorrectly, the sound will become heavy and forced.
Instructions for connecting subwoofers to sound systems
Step 1: Build an installation diagram
Before installation, you should carefully read the manufacturer’s instructions to ensure there are no incorrect procedures, causing damage to the device. You should consider whether you use the speaker’s crossover or the receiver’s crossover, because when you use the crossover, it will help combine a frequency range between the subwoofer and karaoke speakers, in the best way.
Instructions for connecting a subwoofer in a sound system (using 1 subwoofer)
Instructions for connecting a subwoofer in a sound system (using 2 subwoofers)
Step 2: Connect the speaker wire
Before connecting, measure the necessary wire length from the receiver to the subwoofer and remember to leave an extra piece to overlap. Because if you connect using line-level, you will need a standard Audio signal cable with RCA jack at each end. Connect the wire from the receiver’s subwoofer output to the subwoofer’s line-level input.
In addition, if you like to use Speaker-level, you must use a lot of speaker wire, especially when the sub is located far away from the speaker. You then need to run wires from the receiver’s left/right channels to the sub and from there to the speakers.
Video Cable 3RCA 2m eSaver DS147-TB
Step 3: Connect and customize
After installation, turn on the sound system and start customizing it to see if the sound is okay, or to see if the speaker placement is reasonable and if the sound evenly covers the theater space.
However, if the manufacturer has instructions suggesting that you should install it first, please do so. Plug in the power cord, make sure the volume on the receiver is as low as possible, then turn on the system and subwoofer.
3. How to properly calibrate the subwoofer for good sound
For electric subwoofers, you can easily see the sound control button right on the speaker. When adjusting the subwoofer, it will be adjusted directly on the speaker. We can do it entirely on each button on the subwoofer as follows:
- Volume adjustment button:
The Volume button is considered the easiest to adjust, you just need to turn the volume larger or lower so that the bass you hear is quieter than the music. You should slowly adjust so that the music sounds good to your ears.
Jamo C912SUB subwoofer
Of course, the volume button to adjust the volume is only a small part that contributes to the sound quality you are listening to because it also depends on the quality of the Subwoofer of each brand and how you master its functions and how you use them. Sub speaker for the purpose of singing karaoke, listening to music or watching movies as well as how it overall coordinates the entire system you are using.
- LPF frequency cutoff button:
The sound you often hear is a collection of sounds with a frequency range of 20Hz to 20kHz, the sound part of the subwoofer owns the low frequency range.
The LPF button has the function of cutting and combining audio frequencies from about 30 – 150kHz. The negative part of the LPF frequency is used to compensate for the missing sound parts that the speakers do not perform well, thereby helping you have quality sound solutions.
To adjust the LPF frequency button, you should first read the parameters of the main speaker pair in the system. Specifically, if your speaker pair has a low bass frequency of about 80Hz, you should adjust the LPF button slowly to the frequency of 80Hz clockwise.
Jamo C910SUB subwoofer
- Phase adjustment button:
The Phase button has the function of adjusting the phase. When adjusting this button, you no longer have to worry about phase difference when using the speaker.
It’s terrible when the main speakers and subs don’t sound in the same rhythm, so you should adjust the phase from 0 – 180 degrees and play a song with a lot of bass if you hear a lot of bass in that song. is successful.
Adjusting the phase sounds simple, but it actually takes patience to find the correct phase of the two speakers.
Klipsch SUB100-BK subwoofer
Hopefully this article has brought you useful information and how to install Sub speakers. Leave a comment below the article to share with us your questions or experiences when using the speaker calculator!
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