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Someone Please explain to me the difference between a PRE-AMP and an AMP

Discussion in 'AV Receivers' started by Jakarta Tom, May 6, 2003.

  1. Jakarta Tom

    Jakarta Tom Member

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    I am not quite sure I know the difference. If I already have a "receiver" (Marantz7200) and I am looking for more power, is what I need a "Pre-Amp" and not an "AMP" ???
    What is the difference.
    Thanks for the info
     
  2. RobWil

    RobWil Well-Known Member

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    You're looking for an amp. In very simple terms, the amplifier is strictly that, a device that amplifies a signal supplied to it and passes it on to the speakers. The pre-amp has the audio (and possibly video) connections and passes the signal from the source (CD, DVD, Tape, Satellite Receiver) to the amp, in the case of audio, or video display. The preamp also usually has tone controls, volume controls, etc. and may or may not modify the signal in some manner.
     
  3. Brett DiMichele

    Brett DiMichele Well-Known Member

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    A "Receiever" is a PreAmp and Amp and Tuner all in one box.

    A Pre Amp is a source switching and gain stage. Pre Amp's
    do not increase or generate current they simply take a line
    level signal and offer the flexibility to switch between
    numerous line level signals plus they offer Boost/Cut of
    the output line level signal being fed to the Amplifier via
    means of Stepped Attenuators or digital circuitry.

    An Amplifier is a unit that takes a line level signal of
    10 volts or less and amplifies that signal generates wattage
    and current and sends that out to the speakers.

    An Integrated is a Tuner a PreAmp and an Amplifier all in
    one box (sort of like a Reciever but without the whole
    surround sound processing).

    What you need is an external power amp.
     
  4. Burke Strickland

    Burke Strickland Well-Known Member

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  5. Brett DiMichele

    Brett DiMichele Well-Known Member

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    Burke,

    D'Oh! Your 100% Correct about the integrated.. I screwed
    that'n up [​IMG] Thanks for the correction! [​IMG]
     

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