1. Sign-up to become a member, and most of the ads you see will disappear. It only takes 30 seconds to sign up, so join the discussion today!
    Dismiss Notice

Fane Crescendo 18B

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

  1. david_shy

    david_shy Agent

    Joined:
    Dec 30, 2003
    Messages:
    30
    Likes Received:
    0
    Trophy Points:
    0
    Hello

    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

    Joined:
    Apr 5, 2002
    Messages:
    1,553
    Likes Received:
    1
    Trophy Points:
    0
    It does not have enough cone travel for a sub.
     
  3. Chris Brock

    Chris Brock Second Unit

    Joined:
    Sep 13, 2003
    Messages:
    328
    Likes Received:
    0
    Trophy Points:
    0
    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

    Joined:
    Sep 30, 2002
    Messages:
    819
    Likes Received:
    0
    Trophy Points:
    0
    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.
     

Share This Page