2.1, 5.1, 7.2: sound systems explained simply

The different numbers depending on the sound system do not have such a complicated meaning once you know what they stand for. The first of the numbers, in the example „2.1“ i.e. „2“, stands for the number of speakers in a sound system. The second number stands for the number of subwoofers. In the example, this is a sound system with only 2 loudspeakers and a subwoofer. The subwoofer is another very special speaker that is responsible for the particularly deep tones and thus creates the deep bass. 

In fact, there are even sound systems with a third number. When searching for speakers, you may come across descriptions such as „9.1.2“. The third number describes the number of so-called rear speakers. However, these are not speakers that reproduce the particularly shrill sounds, but rather speakers that are actually placed in real halls. 

The best example of this is the speakers in the movie theater, where you actually notice that the sound is coming from the ceiling. This is what is known as „immersive sound“. This refers to the sound experience that comes from all sides, including the ceiling. For example, the company Dolby offers the Dolby Atmos immersive sound system, which has two rear speakers and has replaced the old Dolby Surround Sound system. 

But why exactly is the number of speakers so important? Most people who are looking for a high-quality sound system want it to produce a full surround sound, hence the name surround sound. If you want this for your own home theater, you need to invest in some speakers. 

Two speakers alone do not count as a surround sound system, as their sound only reaches the viewers from both sides of the TV, but does not surround them. This is therefore stereo sound. The word stereo originally comes from the Greek and can be translated as round. To create a surround sound, you need at least three speakers, but most people prefer even 5 for the real home theater experience. The more speakers, the more the sound can fill the room with numerous smaller tonal nuances. 

Summarized again: A sound system with only two speakers has stereo sound; one with three or more speakers has surround sound;has surround sound; and one that has three numbers and therefore high-pitch speakers produces what is known as immersive sound. 

When equipping your home cinema, you should always take the size of your room into account, as a surround sound system is simply not suitable for smaller rooms and would therefore be a waste of money. That's why the choice of your sound system always depends on your individual spatial circumstances. 

This is no different for conference rooms and meeting rooms üby the way. The departures of people to the Display as well as the ratio of the number of loudspeakers to the size of the room;of the room are just as relevant as the screen resolution or the use of rear speakers. 

As a professional company in the fields of conference and media technology, we are the ideal partner for you when it comes to equipping your premises with media technology. It goes without saying that we also take audio technology into account. Not only are we happy to advise you on your complete room equipment, we also take care of the planning, installation and any maintenance of your media technology. Regardless of whether you need a sound system for your video conferencing in large or small venues;Whether you need a large seminar room or want to create your own home theater, we're here to help.  

Thanks to years of experience with a wide variety of customers and, as a result, the media technology equipment of companies, schools or museums, we are specifically designed to work with you to develop a customized and individual solution;customized and individual solution for your requirements. Our partner companies in the field of audio technology include providers such as BOSE, Fohhn, SHURE and SENNHEISER. We are also happy to equip you with complete home entertainment systems. If you have any questions about sound systems or would like advice, we look forward to hearing from you!