Results 1 to 4 of 4

Thread: JBL 2245H 18" Bass unit in a "Transmission line" enclosure

  1. #1
    Junior Member
    Join Date
    Dec 2012
    Location
    United Kingdom
    Posts
    8

    Question JBL 2245H 18" Bass unit in a "Transmission line" enclosure

    Question regarding use of a JBL 2245H 18" Bass unit in a "Transmission line" enclosure?

    This would make for a very large cabinet which would not be an issue for me, but I would be very interested to learn if anyone has built one based on the JBL 2245H 18" Bass unit or a big TL using a similar 18" driver.

    PMC use the 15" Volt (RV3363) in the large BB5 system, which has an fs of around 29Hz. The line length is effectively 4m or 13' according to PMC the actual physical length is a bit shorter at just under 3m. Using 1/4 wave criteria works out at approx 2.9m, so close.

    I did consider the bigger Volt RV4564 which has a resonance of approx 26Hz which would offer greater performance than the BB5. Based on the BB5 specs 1/4 wave comes out at 3.3m (PMC effective length = 4.6m)

    Anyway I am interested to learn if anyone has used the 2245H? I will model with it as a matter of interest.

    I happen to have a pair of 2245H drivers doing very little, so propose a stereo pair of enclosures.

  2. #2
    Senior Member grumpy's Avatar
    Join Date
    Oct 2003
    Location
    SoCal
    Posts
    5,328
    I know this is a year old, but if the OP finds this.. it still might be useful or at least interesting:

    http://www.audioheritage.org/vbullet...highlight=3182
    (jump down to post #7)

  3. #3
    Senior Member
    Join Date
    Feb 2009
    Location
    annapolis, md usa
    Posts
    421
    Quote Originally Posted by grumpy View Post
    I know this is a year old, but if the OP finds this.. it still might be useful or at least interesting:

    http://www.audioheritage.org/vbullet...highlight=3182
    (jump down to post #7)
    That is a thread I'd not seen before. Thanks for the link. I would very much like a demonstration of his efforts.

  4. #4
    Junior Member
    Join Date
    Dec 2012
    Location
    United Kingdom
    Posts
    8
    Quote Originally Posted by grumpy View Post
    I know this is a year old, but if the OP finds this.. it still might be useful or at least interesting:

    http://www.audioheritage.org/vbullet...highlight=3182
    (jump down to post #7)
    Much appreciated will invigate further

    Simon

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Replies: 5
    Last Post: 05-04-2012, 10:54 AM
  2. c-56 model """dorian""" marble
    By colonne in forum Lansing Product General Information
    Replies: 4
    Last Post: 02-17-2006, 04:20 AM
  3. 8" or 10" + 2245H for Bass Guitar?
    By johnaec in forum Lansing Product Technical Help
    Replies: 29
    Last Post: 02-12-2004, 06:54 PM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •