What is a home audio amplifier?

Amplifiers Amplifiers are crucial components in a home audio system. Their role is to amplify the audio signals output by source devices to drive speakers and reproduce sound. Based on their functions and design, amplifiers can be divided into preamplifiers and power amplifiers.

Where can I buy a home theater power amplifier?

Shop for home theater power amplifiers at Best Buy. Boost your home theater sound performance with a power amplifier.

What makes a good home stereo amplifier system?

An excellent home stereo amplifier system includes a preamp in addition to the amplifier. A preamp connects several source devices and can be used to switch between those sources. Preamps also often include equalization controllers and other features like gain and effects. Meanwhile, a power amplifier is just focused on increasing the audio signal.

Who invented the power amplifier?

American inventor Lee de Forest is credited with inventing the first power amplifier in 1909. While De Forest's first Audion amplifier was too weak to manage telephone line voltages, modern power amplifiers descendant from this design today boast immense power and efficiency for live sound applications — enough to fill entire arenas with sound.

What does a power amplifier do?

Power amplifiers, also known as power amps, have the main task of amplifying the audio signals processed by the preamplifier to power levels sufficient to drive speakers. Power amplifiers typically do not include tone controls or other audio processing functions, focusing instead on providing adequate power output.

What makes a good power amplifier?

High-quality power amplifiers do this without distorting or otherwise jeopardizing the original audio signal waveform. Power amplifiers aren't standalone devices; they function within larger elements of live sound equipment. So, finding the right power amp depends on the rest of your gear.