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Fane Crescendo 18B

Discussion in 'Home Theater Projects' started by david_shy, Feb 1, 2004.

  1. david_shy

    david_shy Agent

    Dec 30, 2003
    Likes Received:

    I've been reading this forum with interst and wonder if any of you can offer me some advice..

    I do not currently have a dedicated subwoofer for my system, and am using a Folded Horn PA bin with a Fane Crescendo 18B Driver connected to my sub-out via a power amp as a temporary solution

    Results have been OK, but I've been thinking about building a subwoofer as a project

    My question is, would this Fane driver be suitable for a subwoofer, or should I look elsewhere? (I actually have two of them...)

    The specs of the driver are as follows:

    Resonant Frequency (fs) 30Hz
    Impedance (Re) 5.6WOhms
    Electromagnetic Q (Qes) 0.285
    Mechanical Q (Qms) 2.34
    Total Q (Qts) 0.254
    Compliance Equivalent Volume (Vas) 363 liters
    Mechanical Compliance of Susp ension (Cms) 0.208mm/N
    BL Product (BL) 22.4 T-M
    Diaphragm Mass inc. Airload (Mms) 135 grams
    Voice Coil Overhang (Xmax) 4.7mm
    Surface Area of Cone (Sd) 112cm
    Impedance at Resonance (Zmax) 56Ohms

    Any assistance would be appreciated. i have some experience with speaker design, but subwoofers are new to me
  2. Seth_L

    Seth_L Screenwriter

    Apr 5, 2002
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    It does not have enough cone travel for a sub.
  3. Chris Brock

    Chris Brock Second Unit

    Sep 13, 2003
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    those parameteres seem very odd to me, a Bl of 22.4 yet an xmax of only 4.7mm?
  4. Allen Ross

    Allen Ross Supporting Actor

    Sep 30, 2002
    Likes Received:
    with that xmax, I am guessing they will be better in a folded horn set up, if i remember correctly if the driver has a high EPB then it will do wonders in a folded horn, granted you won't be hitting 20 hz but it will have one hell of an impact at 35-40.

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