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THX on a Processor

Discussion in 'AV Pre-Amp/Processors & Power Amps' started by Garrett, Mar 27, 2003.

  1. Garrett

    Garrett
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    What is THX on a surround amplifier/processor?

    I know THX is a certification for some equipment such as speakers, but does THX on an amp mean it has a surround processing system like 5.1 and DTS or the amplifier/processor comes up to a standard?
     
  2. EvilMudge

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    THX on a processor/AV amp is not just a standard, but also a series of proprietary processes to make the sound of a home setup more like that of a cinema.

    These include:
    Re Equalisation - to take out the treble bathtub which is necessary when using speakers behind a screen.
    Timbre matching - supposedly brings the frequency response of the front's and rears into line (useful when using di-poles)
    Decorellation - adds a slight phase shift between the left and right rear speakers when using a mono soundtrack.
    Accurate Time Alignment - any amp should do this, but THX mandates it.
    Subwoofer peak limiter - prevents reference level soundtracks from wrecking our puny domestic subs.
    75db Calibration noise - on all channels, including the sub.
    Bass management - fixed 80Hz crossover, with specific roll off gradients.


    There are more, when you add Ultra 2 and EX etc, but those are the basics.
     
  3. HotblackDesiato

    HotblackDesiato
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