How to Use a Power Amplifier

Posted by ttvjaudio on May 12th, 2021

What is a Power Amplifier?

A power amplifier is used to supply power to multiple speakers at once. Although it doesn’t have any special features, unlike home theaters, it certainly has a gain control which is in some way similar to the volume.
If you are thinking to buy an online audiophile amplifier, you’ll find the high-end audiophile amplifiers available in several configurations with up to seven or more channels. For added benefits, find a subwoofer for home entertainment, in addition to source devices and speakers. An internal amplifier is present if the subwoofer is self-powered (which is the most common type). Connect the subwoofer preamp output from a preamp/processor or home theatre receiver to a powered subwoofer to stream music. You can link a subwoofer preamp output to an external power amplifier if the subwoofer is passive (also called a subwoofer amplifier). This form of the amplifier should only be used to power the subwoofer and not power other speakers. Not satisfied? buy an online audiophile amplifier of your choice from a range of high-end audiophile amplifiers.

Power Amplifier and Home Theater

Speakers are powered by amplifiers built into home theatre receivers. Even so, some receivers have preamp outputs that can be connected to one or more power amplifiers to provide more power than the built-in amplifiers. As a result, the receiver becomes a preamp/processor.
Assume a multi-zone home theatre receiver. In that case, the Zone 2 (or 3 or 4) preamp outputs can be wired to an external power amplifier to power a series of speakers in various locations while the receiver's built-in amplifiers are used for the main zone. Now, assume that the receiver has 7.1 channels and enough preamp outputs to run a two-channel independent region. In that case, you can use external power amps connected to speakers in the additional zone to simultaneously run the main 7.1 channel zone and the 2-channel second zone.

Difference between an Integrated Amplifier and a Power Amplifier

A power amplifier is not the same as an integrated amplifier. Source input connectivity and switching, varying degrees of audio decoding or encoding, and a built-in amplifier for powering speakers are all included in the integrated amplifier. An integrated amplifier, unlike a stereo or home theatre receiver, does not receive AM/FM radio transmissions. It might, in fact, be able to download music from the internet in exceptional circumstances. Such amplifiers are known as streaming amplifiers.

Why do you need a Power Amplifier?

More often than not, most home theatre setups consist of an AV receiver that handles source portion connectivity and switching, as well as all audio (and often video) processing and speaker control. Some users tend to use separate AV processors and power amplifiers to separate input switching and AV processing from powering and connecting loudspeakers.

Buy an online audiophile amplifier of your choice from a range of high-end audiophile amplifiers.

Author’s Bio: The author is a blogger. This article is about the use of power amplifiers.