Page 2 of 2 FirstFirst 12
Results 16 to 17 of 17

Thread: JBL Speakers Internal Bracing

  1. #16
    On Holidays Ian Mackenzie's Avatar
    Join Date
    Apr 2003
    So explain what it is you are hearing?

    Is it a buzz, coloured mid range or something else?

  2. #17
    Junior Member
    Join Date
    Dec 2013

    If I listen to some music, I can hear that some frequencies (I don't know if it is one or several) are louder than normal, strident and unpleasant. It is easier to hear if I turn off the compressions. Some musics are more revealing than others because the notes are played more frequently and are more sustained.

    I can hear the same annoying notes if I put one ear on the box panels at some locations. It is very likely high Q resonances that are generated by the box. If it was low Q resonances, it would probably appear more like a coloration (unpleasant but not strident).

    I already encountered this problem in the past. It was a DIY box holding a 12" woofer. The box was made with thick MDF and braced with a plywood matrix (like the B&W 800). During several year I thought that the woofer wasn't top notch. But I finally discovered that the box was ringing (even if it was build very strong and eavy). I did a lot of trials to brace and dampen the box. And by chance, I finally fixed it. A part of the matrix was ringing. By damping it, I fixed the problem.

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Adding internal bracing to L300 Summit
    By JubalJansson in forum Lansing Product DIY Forum
    Replies: 2
    Last Post: 03-15-2020, 11:57 AM
  2. Internal bracing, glue used by JBL?
    By BullFire in forum Lansing Product DIY Forum
    Replies: 2
    Last Post: 04-12-2019, 08:09 PM
  3. upgrade television internal speakers
    By bldozier in forum General Audio Discussion
    Replies: 7
    Last Post: 04-01-2015, 09:08 AM
  4. Does internal cables replacement changes the sound od speakers ?
    By davidpou in forum Lansing Product Technical Help
    Replies: 23
    Last Post: 05-07-2014, 01:56 AM
  5. Cabinet bracing
    By stevem in forum Lansing Product Technical Help
    Replies: 18
    Last Post: 10-08-2005, 01:38 AM

Posting Permissions

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