A stereo power amplifier is simply a two channel power amplifier.
You can runn it in a couple of ways; Stereo, mono or bridged.
Stereo has a seperate left and right signal in and sepetate out.
Mono is one channel in and both output channels reproducing the one signal in.
Bbridged gives you the same as mono BUT it uses both channels as one output.
Question: Can a power amplifier amplify the power? An amplifier can amplify the voltage or the current. Power can be converted to heat.
A voltage amplifier does not have to supply significant current bur a power amplifier does.
No. In an amplifier, Power Out > Power in. In a transformer Power Out ~= Power In (minus internal losses). An AC generator is more like an amplifier than a transformer.
You can get amps for your guitar amplifier by purchasing and connecting a separate amplifier unit, also known as a power amplifier, to your existing guitar amplifier. This will allow you to increase the overall power and volume output of your guitar amplifier.
A power amplifier may also boost voltage; in audio equipment, power amplifiers often have a dial on the front that is used to control the input voltage gain. A simple power amplifier is composed of a single transistor; this type of configuration cannot provide voltage amplification as well. A voltage amplifier stage is needed. So the above example of an audio power amplifier is actually a voltage amplifier stage, followed by one or more power amplifier stages.
An amplifier will power your subwoofer so they can work.
the final stage of a power amp is a current amplifier in a bipolar design and a voltage amp in a FET design.
If an RF amplifier amplifies the incoming signal by 200 times, the power gain of the amplifier is +25.9 dB. Power is proportional to voltage squared, so the power gain is 400. The decibel scale is 3 times log2 of the power change.
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The answer to whether an RF power amplifier is useful for your home depends on the qualifty if your equipment. If your T.V. is getting a weak signal for example, an RF power amplifier may be useful to get a better signal.
Class B operated amplifier is used extensively for audio amplifiers that require high power outputs. Its also used as the driver and power amplifier stages of transmitters.
A VHF power amplifier increases the amount of power which is sent to your VHF. For more information online you can visit www.mirageamp.com/ or www.craigr.com/subelement1.htm