Theil Small Explained

Discussion in 'General Car Audio Discussions' started by sandt38, Mar 19, 2004.

  1. sandt38

    sandt38 Full Member

    I am giving full credit where it is due. I asked Dave Edwards, when I saw this AWESOME explination of params, if I could copy this and add it to george. I will, but I wanted ease of access and I also added it here. This is the very best TS param explination I have ever seen.

    Again, Thanks to Dave Edwards for his time, and knowledge...
     
  2. geolemon

    geolemon Full Member

    Hmm...

    It is a good reference... but there's always something to disagree with it seems...
    Under "Powerhandling":
    I'm really surprised to see this in the text of what are some otherwise really good descriptions! :blink:
     
  3. sandt38

    sandt38 Full Member

    As a general rule yes, but I have heard a good explination of why. With too little power and not enough output, some people may have a tendancy to try to crank the gains more, or turn the volume up untill severe clipping is reached.

    I know neither of us can fathom doing that, but there are those who just want loud at any cost :blink:
     
  4. luvdeftonz

    luvdeftonz Full Member

    Great reference! The thing that sets this one apart from most of the other "papers" defining T/S parameters is that this one includes examples so the term isn't so abstract. Kind of like everyone else is rehashing...which begs the reader to ask the question: "Yeah, but what does that mean...in application."

    :kiss: :kiss:
     
  5. The_Ancient

    The_Ancient Full Member

    but that is NOT "too little power" come one, do we really need to aurgue this again

    under NO CIRCUMSTANCES< ZERO< ZILCH, NOTTA will underpowering kill a speaker
     
  6. geolemon

    geolemon Full Member

    Exactly...
    It's a statement that shouldn't be made.

    No one that understood a gain control and clipping would clip their amps in that way.
    And nothing correlates that someone that has an amp that's lower powered will be ignorant of the gain control, and therefore clip their amp.
    And there's the necessary correlation that they must have a large enough amp that while technically lower than the rating of the sub, is large enough that when they clip the amp, the resulting power factor ends up being in reality greater than the power rating of their subwoofer... and they actually are clipping it to that degree...

    Phew!

    All that...
    It's a bad generalization. :no:

    Even when you do have this scenario, after all... it's not too little power that's harming the speaker.. it's because you are misusing that smaller amp in a way that's well outside of it's design intents, to produce in reality more power than it's designed to make (yet without increasing the voltage amplitude higher than nominal ratings), making it produce more power than the sub can handle.

    It's still "too much power" killing the speaker.
    Should it really be up for debate what the mechanism is that was used to send too much power to the speaker? ;)
     
  7. The_Ancient

    The_Ancient Full Member

    english please ;) :p :p :p :p
     
  8. Steven Kephart

    Steven Kephart Full Member

    I definitely agree. I can understand where they are getting it from, but I feel it is the wrong wording to use. This is true in that it usually confuses the less informed and they go out and preach that you need to match or exceed the power ratings on subs so you don't "blow it".

    It also ignores the fact that enclosure size is a factor as well.