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Dolby Definitions

Discussion in 'AV Receivers & Amplifiers' started by UselessPratt, May 3, 2003.

  1. UselessPratt

    UselessPratt
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    Ok, I am new to all this AV stuff. Whats with all the different dolby's? I mean why 5.1, 6.1 and 7.1? And how come all DVD's seem to be 5.1 and yet AV amps are 5.1, 6.1 or 7.1? And what the hell is an AV amp anyway?
     
  2. hornydragon

    hornydragon
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    AV is audio visual.
    X.Xis the speaker channels.
    5 channels and a sub is 5.16 and a sub 6.1 some DVD are 6.l or 5.1 can be converted to 6.1
    This what all the DTS DD and DTS neo6 DD EX DTS ES is all about, no current material is 7.1 but you can use those a repeters fo other channels,Search for stuff read sleep on it read some more then you will understand.
     
  3. UselessPratt

    UselessPratt
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    Why do all DVD players support 5.1, yet av amps support all sorts? Does the av amp actually need the dvd player to support anything? Or does it do it all by itself? In that case why to the dvd players support anything at all?
     
  4. hornydragon

    hornydragon
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    With digital out the amp does the work so any DVD with digital out will provide signals to an amp to do the decoding (i am pretty sure of this) Saying it support DD/DTS means digital out, some DVD have decoder but they arent very common!
     
  5. UselessPratt

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    ok :)

    Whats the point of the dvd's that do?
     
  6. hornydragon

    hornydragon
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    DVD player that do decoding can be used with old Prologic amps or 3 stereo amps, some lifestyle packs have the 6ch input that the these DVD's output. DD decoders are often on budget DVD's DTS only on very high end ones last time i heard.
    Can i ask why you are asking?
     
  7. UselessPratt

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    I was curious why so many dvd players seemed to do decoding, and yet the amps often ignored it.
     
  8. hornydragon

    hornydragon
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    all av amps will do some decoding, where you looking at anything particular?
     
  9. UselessPratt

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    No. I am just trying to work it all out. It is slowly becoming clear. I mean basically you can buy a dvd and plug it into a five channel amp, or use an AV amp, of which there are a number of different standards and so on, and different numbers of speakrs.
     
  10. nathan_silly

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    You can't do that. You need a pre-amp between. On the simplest level a AV amp has a pre-amp, or you could go for a Processor (this has pre-amp) and a 5 channel poweramp.

    Plugging the 5.1 output on a DVD player directly into a poweramp is not a good idea.
     
  11. hornydragon

    hornydragon
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    Sort of mate your getting there!
     
  12. UselessPratt

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    Yeah, but, I believe that Arcam are doing a add in board for one of their stereo amps that will increase the pre-amp stage to handle five inputs and give three extra outputs to which you can add one of their three channel power amps to bring the system up to full 5 way pre/power. It's a kinda poor mans Av system.

    ( I am just trying to understand all the various ways of achieving the same end...!! )
     
  13. lynx

    lynx
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    Try a look here http://www.dolby.com/digital/
     
  14. Ian Cox

    Ian Cox
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    The site I have put together should help you (sorry for the blatant self promotion :blush:)

    Have a look here for info on home cinema amps

    And here for info on the different sound formats that home cinema amps use

    Hope it helps
     

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