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A preamplifier prepares sound for output into a stronger amplifier and controls tone, treble and bass. Preamplifiers are used on CD players, electric guitars and anything else that outputs sound electronically.Source:
by SashaOFD on February 3rd, 2010
In general, the function of a preamp is to amplify a low-level signal to line-level. A list of common low-level signal sources would include a pickup, microphone, cd player, or other transducer. Equalization and tone control may also be applied.
In a home audio system, the term 'preamplifier' may sometimes be used to describe equipment which merely switches between different line level sources and applies a volume control, so that no actual amplification may be involved. In an audio system, the second amplifier is typically a power amplifier (power amp). The preamplifier provides voltage gain (i.e. from 10 millivolts to 1 volt) but no significant current gain. The power amplifier provides the higher current necessary to drive loudspeakers.
What does watts/channel mean?
by Answerbag Staff on May 15th, 2011
| 1 person likes this
What gauge wire do I need for a 600-watt amp?
by Answerbag Staff on August 11th, 2010
| 1 person likes this
I have a radioshack audio output transformer, and i assume it can be used for amplification, but how? i tried just wiring it up straight, both ways, but it didn't do anything but get quieter. can someone tell me how to do it?
by slowkid247 on April 30th, 2008
| 2 people like this
Will a car stereo amp work with no fuse?
by Answerbag Staff on May 2nd, 2011
| 1 person likes this
I have an Onkyo m-5030 power amplifier that I believe is rated at 115 watt @ 8 ohms per channel.. I would like to run four speakers, does anyone know what Watt speakers I should be running with this unit given the output rating?
by drillert450 on February 27th, 2008
| 1 person likes this
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