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TB 1772 vs 1808 (sealed 2-way) question

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  • TB 1772 vs 1808 (sealed 2-way) question

    Contemplating a pair of either of these with a pair of TB W8-1747 subs as woofers in a stereo pair configuration.

    A full range driver + sub active two way (which I refuse to call that horrible 'FAST').

    I'll use that minidsp crossover http://www.minidsp.com/ with LM1875 & LM3886 amps.

    The Question:

    The 1772 & 1808 are similar, but different. My plan was a smallish sealed partition over a ported W8-1747.
    I'm expecting to cross somewhere between 150 to 250 hz, but I guess could even be higher, although the 1747 is to be downfiring.

    With the spec. variations between these two drivers, which is better suited to this application ?

    Or does it boil down to whether one prefers 'the white one' over 'the yellow one' ;)

  • #2
    Re: TB 1772 vs 1808 (sealed 2-way) question

    Originally posted by max2tall View Post
    Contemplating a pair of either of these with a pair of TB W8-1747 subs as woofers in a stereo pair configuration.

    A full range driver + sub active two way (which I refuse to call that horrible 'FAST').

    I'll use that minidsp crossover http://www.minidsp.com/ with LM1875 & LM3886 amps.

    The Question:

    The 1772 & 1808 are similar, but different. My plan was a smallish sealed partition over a ported W8-1747.
    I'm expecting to cross somewhere between 150 to 250 hz, but I guess could even be higher, although the 1747 is to be downfiring.

    With the spec. variations between these two drivers, which is better suited to this application ?

    Or does it boil down to whether one prefers 'the white one' over 'the yellow one' ;)
    My vote would be the 1808/white on this one. You get more Xmax, and you really don't need the higher output of the other if you are usign a sub.

    Just my 2c,
    Wolf
    "Wolf, you shall now be known as "King of the Zip ties." -Pete00t
    "Wolf and speakers equivalent to Picasso and 'Blue'" -dantheman
    "He is a true ambassador for this forum and speaker DIY in general." -Ed Froste
    "We're all in this together, so keep your stick on the ice!" - Red Green aka Steve Smith

    *InDIYana event website*

    Photobucket pages:
    https://app.photobucket.com/u/wolf_teeth_speaker

    My blog/writeups/thoughts here at PE:
    http://techtalk.parts-express.com/blog.php?u=4102

    Comment


    • #3
      Re: TB 1772 vs 1808 (sealed 2-way) question

      I have a pair of down-firing subs, and at 80-100Hz, no problem. Above that, I think you will take somewhat of a loss due to carpet absorption, etc. I tried a 150Hz active XO and could definitely hear that things weren't right, where with a front-firing sub, all was kosher.

      Search for the Bob Brines thread on this driver, I think he is thinking it needs a supertweeter also.

      I have been looking at this driver also, but due to cost and not having heard it I am waiting to hear someone else's project first

      Cheers / Robert

      Comment


      • #4
        Re: TB 1772 vs 1808 (sealed 2-way) question

        Thanks for those comments gents.

        Wolf, your 2c is worth A LOT more than 2c to me, cheers

        Robert, well put, I'll likely cross lower. Have had a good read of that thread earlier but the extra tweeter would be wasted on me I reckon, too much angle grinding on old cars as a kid I guess, but thanks also

        Comment


        • #5
          Re: TB 1772 vs 1808 (sealed 2-way) question

          Unless I've missed something, I think I've answered my own question.

          WRT attached, the 1772 likes a small box much better than the 1808 ?
          Attached Files

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