An integrated amplifier is a device that combines two essential audio components: a preamplifier and a power amplifier. The preamplifier boosts low-level audio signals from sources like CD players or turntables, while the power amplifier increases the signal strength to drive speakers. This all-in-one design simplifies audio setups and reduces the need for multiple devices. Integrated amplifiers often include various inputs for connecting different audio sources and may feature tone controls and other adjustments. They are popular among music enthusiasts for their convenience and ability to deliver high-quality sound in a compact form, making them suitable for both home and portable audio systems.