Acoustics 2.0 and 2.1. This is the simplest acoustic system is a subwoofer, and sometimes without it. Its worth buying if you are not very demanding to computer audio as it allows you to enjoy normal stereo sound. It is suitable for listening to mp3 (because this format can not boast of special quality of sound).
Phonics 4.0 and 4.1. This speaker system is more suited for people playing 3D shooter games. Since this speaker system to cope with the sound effects that are inherent in these games. Although when you listen to music much of a difference between acoustics 2.0 and 4.0, you will not feel.
Acoustics 5.1. If you like to watch movies in DVD format, this speaker system will suit you best, because it supports six-channel sound and has decoders for Dolby Digital, DTS and Dolby Prologic.
Acoustics 7.1 and 7.2. The most expensive speaker system, it is designed for gourmets of sound. With this system you will be able to listen to a truly high-quality sound. Thanks to this system, your computer can be turned into a real home cinema. Usually, this phonics consists of one or two subwoofers and seven satellites. On such systems installed audio processors that decode multichannel sound such as Dolby Digital Surround EX and DTS Surround EX.