also known as a power amp, is an electronic device that significantly boosts the power of an audio signal, enabling it to drive loudspeakers or headphones. It’s a crucial component in many audio systems, from home theaters to professional sound systems.
Specifications
Key Features
Input Stage: Receives the low-level audio signal from a source like a CD player, turntable, or microphone.
Preamplifier Stage: Amplifies the signal to a suitable level for the power amplifier stage.
Power Amplifier Stage: Significantly increases the signal’s power to drive speakers.
Types of Power Amplifiers:
Stereo Amplifiers: Amplify two channels of audio, typically for left and right speakers.
Multi-Channel Amplifiers: Amplify multiple channels of audio, commonly used in home theater systems to power surround sound speakers.
Integrated Amplifiers: Combine a preamplifier and power amplifier in a single unit, providing a convenient solution for many audio setups.