A power amplifier takes the low-voltage signal supplied by a preamplifier, and increases it to a sufficient level to drive speakers. Receivers contain both preamplfier and power amplifier sections, eliminating the need for a separate amp and preamp.
An amplifier that takes line level audio signals and make them strong enough to power a speaker.
The power amplifier takes the low-voltage signal supplied by the soundcard and amplifies it to a sufficient level to drive speakers.
An amplifier that delivers a certain amount of alternating-current power to a load. Used in audio-frequency and radio-frequency applications
An audio device that increases a line level signal to a voltage sufficient to drive speakers.
An audio or RF amplifier designed to deliver signal energy (power) rather than signal voltages.
The final active stage of the audio chain, designed to deliver maximum power to the load or speaker impedance for a given percent of distortion.
Takes the low powered output from a Pre Amplifier (see below) and drives the speakers. By separating the Pre amplifier stage from the Power amplifier stage, normally contained within the same box in a stereo integrated amplifier, the internal interference is reduced giving a stronger, higher quality sound. The Power amp takes the variable signal and amplifies it by a fixed amount - the volume is controlled by the Pre amplifier.
An audio component that boosts a line-level signal to a powerful signal that can drive loudspeakers.
An amplifier in which the output-signal power is greater than the input-signal power.
Supplies audio signals to the loudspeakers.
an RF element of a transmitter that amplifies a modulated carrier signal for transmission by an antenna
A component that is used to amplify the line level signal from a preamp to levels that loudspeakers can accept.
The main component of any amplifier, it is the part inside the amp where the recorded sound is reproduced to be as loud as the amplifier can make it, the more energy the amp can handle the louder the power amp will make the sound.
The portion of an amplifier that produces the high current levels needed to drive a loudspeaker.
The amplifier required to drive a loudspeaker.
The final stage of amplification in a radio, the purpose of which is to raise the signal to the level required by the antenna system.
An amplifier intended to increase the power of a signal enough to drive a load such as an antenna. Typically, power amplifiers also have large values for P1dB, indicating low distortion at high output power.
Electronic device which increases the power of an incoming low level signal to accomodate the power requirements of a loudspeaker
An electronic device that increases the volume of a signal. A basic unit of all sound systems. Power amps are typically connected to a preamp which provides controls for individual functions: level, tone, etc.
Or Power-amp / slave-amp is a device that takes the signal from a mixer or Pre-amp, increases the signal level and passes it on to the speakers.
An amplifier without tone controls, and with a higher power output than a line amplifier or pre-amp. Commonly used to drive loudspeakers.
Amplifier used to boost an input signal so that it can be outputted through a loudspeaker.
A device that increases the amplitude of an electrical signal.
Electronic equipment that increases strength of signals passing through it.
An active amplifying device whose primary function is to deliver output power.
Power Amplifiers are very simple devices in concept. They take a small signal and increase its power so that a loudspeaker may be connected to its output terminals. Home theater power amplifiers come in many configurations and power ranges. In any system one amplifier "channel" is needed for each speaker in your home theater system. (Note: Some sub-woofers include their own internal power amplifier so you might only require five channels of amplification). Some power amplifiers combine all five or six amplifiers in a single chassis, others, which are sometimes called "mono blocks," will only power a single loudspeaker. How much power do I need? The answer to that question is not simple. It is a complex relationship between the size of your room, the efficiency of your speakers, and ultimately your individual requirements for volume or sound pressure level (SPL). Generally amplifier power outputs of less than 50 watts per channel are considered "low," 50 to 100 watts "medium," and over 100 watts "high."
See main amplifier.
An amplifier designed to deliver maximum power output to a load. Example: In an audio system, it is the power amplifier that drives the loudspeaker.
Prepares audio signals sent from s source for output to loudspeakers.