Surround sound speakers typically use multiple speakers and a subwoofer. With this, you should choose speakers such as Bipole or dipole.
Bipole speakers have two drivers placed in an encasement at an angle to each other. They are also considered bidirectional or in-phase speakers. They are built in a perfect phase with each other, radiating a wide sound field. A Bipolar speaker can be used as a front channel because of the good phase correlation because it is wired in phase in the opposite pair.
Bipole speakers consist of two or more speakers, which emit sound from both sides towards the front and back of the room. Both speakers work together. They create a diffuse sound effect that can be placed in large rooms. They are not focused and can be placed anywhere because they can produce sound anywhere.
Bipole speakers are designed to produce an omnidirectional sound for a more room-filling music experience because they have front and rear drivers.
Both drivers push the wind together. They are in phase with each other. They work well if they are not positioned exactly to the side of the listener. As side surround speakers and rear speakers, they push the sound in different directions therefore, the audio from these speakers is difficult to find.
Bipole speakers fire the sound to the seat but not directly to the listener and in this way avoid hot spotting and provide a focused, direct surround sound, and at close range.
The dipole speaker is the simplest speaker made by mounting a loudspeaker driver on a flat panel, and it is folded and occupies little space. It is called a dipole because it has two lobes and produces both forward and backward radiation. This reduces the excitation of resonant room modes at lower frequencies.
There are two speakers in an enclosure that are wired out of phase together, such that only one speaker produces sound at a time and forms a phase cancellation that does not cause listening. This causes a sound to spread away from the listening points. Phase cancellation produces unexpected effects, such as loss of bass frequencies.
You may find that raising the bass frequencies does not cause any noticeable effect. But it can feel like life in a small room filled with many chairs if placed in the right place. They are usually placed on the side walls. One side pushes the air and the other side pulls the air creating a dead zone at 90 degrees from the wall, which requires the listener to sit in the right place.
Simply put, a dipole speaker produces the same amount of output from the front and back speakers but none of the power.
“Dipoles provide a wider sense of ambiance”
Dipole speakers produce less focused, diffuse, and surround fields.
Bipole and Dipole Speaker-Difference
Both Bipole and dipole speakers are similar in a way, there are two speakers in one enclosure, but they are different because the drivers of Bipole speakers on both sides push the air out at the same time.
While on dipole speakers, the drivers are out of phase with each other, one pulls, and one pushes the air. They don’t work together. The bipole works when the speakers are not positioned on the sides of the listener exactly, while the dipole needs to be on the sides of the listener.
How Does a Surround Sound Speaker System Work?
For the proper working of a surround speaker system we need:
- A Media with integrated audio for surround sound.
- An audiovisual receiver
- And the speakers are arranged around the chair.
In a surround sound speaker system, the listener needs two speakers to the side or behind him and two or three speakers facing him. The output sound is divided into several signals and each speaker produces a different sound with the most prominent sound coming from the front speakers.
The power and connection to the audio hub is provided by a wire to the speakers called wired surround sound speakers, and it is better than wireless.
Consider an example of a surround 5.1 system. This means 5 speakers and a subwoofer. Three of the five speakers in front of the listener are known as front speakers and the two on the sides are called surround left and surround right speakers. Adding two more speakers gets a 7.1 system and adding a subwoofer gets a 7.2 system. Adding a ceiling or height is also an option.
In a surround system, the front speakers are the most critical. And if you have them, it’s easy to decide on surround speakers from the three main types.
Choosing the Perfect Speaker?
The performance of the speakers depends on the location of the speaker and the acoustics of the room. Place the speakers in the right place to avoid sound distortions that can be caused by reflections from the walls as they affect the overall performance.
The bipole is best for side or back wall installation, and the Dipole for side wall installation.
According to your need, a perfect speaker is decided. If you listen to a lot of music and you can’t decide on the place of the speaker, then a Bipole is for you. They produce excellent sound when placed on the back wall and are great for home theaters.
From the above discussion, it is concluded that both are speakers and work well according to the situation of the area. The performance of the speakers depends on the placement of the acoustics as it reduces or eliminates the reflection of sound coming from the walls of the room.
Localization is also important. “If the room is small, acoustically controlled, and has a lot of seats, a dipole works better, and for small rooms and not acoustically controlled, the Bipole is the best choice.”