[ki-ka]

An amplifier for speakers is an electronic device that increases the power of a signal to drive a speaker. It connects to the input source, such as a CD player, radio, or even a computer, and it has output connectors for the speakers. The amplifier increases the voltage and current of the signal to the level that the speaker requires to produce sound. Without an amplifier, the sound produced by the speaker would be very faint. There are various types of amplifiers, including tube, solid-state, and digital, each having its own sound characteristics and uses.