preamp+amp=?

Discussion in 'AV Receivers & Amplifiers' started by yiannisvog, Dec 27, 2001.

  1. yiannisvog

    yiannisvog
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    Hello everybody! I have a DENON AVR 3801 as the preamplifier and an ADCOM GFA 7500 (5 channel) as my amplifier. The ADCOM gives 150W/channel. Does the preamplifier increases the final power/channel.

    Thank you and i wish you all have a very happy new year!
     
  2. salizar

    salizar
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    Yiannisvog,

    Amplification is provided by the power amplifier while the preamplifer processes the signal - so the answer to your question is; no it does not increase the final power/channel.
     
  3. MarkE19

    MarkE19
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    In very, very, very simplified terms the preamp turns the power down, not up.

    If you connect the 5 channel analogue outputs from a DVD player directly into a 150w per channel amp then all 5 channels would play at 150w all the time.
    Plug in a preamp and you can turn the volume of each channel down to a reasonable volume.

    Mark.
     

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