Browse Month: July 2016

How Small Will Audio Amplifiers Become?

Recently, you may have noticed that audio amplifiers have become small. In fact, they have become so small that some of them easily fit into a portable device such as a smart phone. However, having a small size also brings about some limitations. So how small can audio amplifiers become without sacrificing performance? Let me look at some technical specifications that you need to understand in order to figure out the answer.

The main purpose of an audio amplifier is to convert an envelope audio signal into a voltage which is strong enough to drive some speakers. Different types of amplifiers have a different number of channels. A stereo amplifier, for example, has two channels. It usually drives two speakers which connect to an audio source. Obviously, having two channels requires more space than having an amplifier only offers a single channel.

Multi-channel amplifiers such as the ones used for surround sound setups are even …