What does a preamp do?

Answer

A preamp is a smaller amplifier that can receive an audio signal and bypass the primary amp when the need for the amplified sound is less than the primary amp.
1 Additional Answer
A preamp raises a low level signal from the pickups on a guitar or a turntable, to a line level signal to be amplified even further by an additional amplifier.
Q&A Related to "What does a preamp do?"
Preamp refers to Pre Amplifier. It is the circuit before amplifier. For quantities which are very small pre amplification is needed. It is coupled to main amplifier.
http://answers.ask.com/Consumer_Electronics/Other/...
Answer Preamplifier A preamplifier (preamp) is an electronic amplifier which precedes another amplifier to prepare an electronic signal for further amplification or processing. Description
http://wiki.answers.com/Q/What+is+the+main+purpose...
1. Lay out your preamplifier by drawing a diagram or schematic showing where everything goes. Check out the link to a sample schematic in the Resources section. 2. Lay out your circuit
http://www.ehow.com/how_2123808_build-preamp.html
The preamp is the signal processing part of an amplifier. ChaCha again!
http://www.chacha.com/question/what-is-a-preamp
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