A powered speaker, also known as an active speaker, is a type of speaker that has a built-in amplifier and does not require an external amplifier or receiver to power it. The amplifier is usually built into the speaker cabinet, and the speaker is designed to receive an audio signal directly from a source such as a mixer, computer, or mobile device. Powered speakers are commonly used in home audio systems, professional sound systems, and live performances. They are generally more expensive than passive speakers but offer the advantage of being easier to set up and more convenient to use, especially in smaller setups where space and portability are a concern.