Let me take a look at the newest types of wireless speakers and investigate how today’s speakers differ from traditional speakers. One of the biggest developments in the wireless speaker technology is the wireless transmission itself. In the past, wireless models would use FM transmission. This method works by sending the music similarly to FM radio stations. This method produces a fair amount of hissing and harmonic distortion. In addition, it is prone to wireless interference. However, speakers which use the traditional transmission are inexpensive to manufacture and offer fairly high range.
In contrast, modern wireless speaker models usually employ digital audio transmission. Wireless models which are based on this technique can be found at http://www.amphony.com and other speaker related websites. These speakers differ from traditional models in that they digitize the music signal prior to transmission. The result is very high dynamic range with virtually no hiss or static. Further, newer models incorporate various methods of error correction in order to be able to cope with radio interference. Another improvement has been made in the area of audio amplifiers. These power amps are inside each speaker. Newer models feature digital amps with high power efficiency and very low harmonic audio distortion.