Desktop speakers are the small systems that connect to a laptop or a PC. They come in variations from 2 channels (two speakers) and go up to 5.1 channels (two front speakers, two surround, one centre and subwoofer). Laptops come with on-board speakers but they are good only for low decibel sound. To enjoy greater acoustics, users can go for external 2 channel speakers that can be connected to the laptop and use external power. These are a good option for small scale media and entertainment needs.
For a desktop PC there are numerous speaker systems available. One can easily turn a normal PC into an aural monster. For normal entertainment and gaming needs, a 2-1 channel system will suffice. This has two front speakers and a small subwoofer for extra bass and treble. If you are a gamer or avid movie watcher who requires explicit sound, then a 5-1 channel speaker system will be excellent for you audio- visual experience. While the two rear speakers in this configuration provide surround sound the medium to large subwoofer enhances the low frequency sound.