Xmax!

Discussion in 'Archived Threads 2001-2004' started by Brian Bunge, Nov 9, 2001.

  1. Brian Bunge

    Brian Bunge Producer

    Joined:
    Sep 11, 2000
    Messages:
    3,716
    Likes Received:
    0
    OK, guys! I know that you can get a general idea of Xmax from the voice coil length and the air gap length but I don't have my copy of the LDC handy. Can someone post the little formula?
    Thanks,
    Brian
     
  2. Isaac C

    Isaac C Stunt Coordinator

    Joined:
    Aug 1, 2000
    Messages:
    140
    Likes Received:
    0
    I believe peak Xmax = (absolute value of [voic-coil length] - [airgap length]) / 2
    [​IMG]
    Isaac
    ------------------
    Subwoofer Simulator
    Factor Conversion Tool
    [Edited last by Isaac C on November 09, 2001 at 10:06 AM]
     
  3. Brian Bunge

    Brian Bunge Producer

    Joined:
    Sep 11, 2000
    Messages:
    3,716
    Likes Received:
    0
    Issac,
    OK, so if VC length=32mm and air gap=8mm then Xmax would be 12mm. I assume this is for 1 way since we divide by 2, correct?
    Brian
     
  4. Randy G

    Randy G Second Unit

    Joined:
    May 18, 2000
    Messages:
    460
    Likes Received:
    0
    Brian,
    So with a coil length of 32 and a gap of 8, would that be (32-8)/2 or 32 -(8/2)? I'm guessing it's the first or 12mm, right? So if the Monitor Audio FB 212 uses 2 of these in a push/pull isobarik config. in a ~1.9 ft3 vented enclosure with a 360 watt amp, how do you think it might compare to the single SV-12 inside the same size sealed TitanII with 250 watt amp?
    Anybody?
    ------------------
     
  5. Jack Gilvey

    Jack Gilvey Producer

    Joined:
    Mar 13, 1999
    Messages:
    4,948
    Likes Received:
    0
  6. Randy G

    Randy G Second Unit

    Joined:
    May 18, 2000
    Messages:
    460
    Likes Received:
    0
    Thanks for the links, Jack. Much appreciated.
    ------------------
     

Share This Page