Strange JBL 4430 bass spreading

Discussion in 'Listening Spaces' started by Zaccharie, Sep 13, 2017.

  1. Zaccharie

    Zaccharie New Member

    Messages:
    11
    Hi,

    I just moved my 4430 in my new party room and the bass are spreading in a very strange way. (It was the same before, but now I want to make things better.)

    here is a pick showing the room layout & how the low-bass are spreading:

    myRoom.png

    Some more pics of the room: https://photos.app.goo.gl/6XKIlo0PoJuDPaY92

    It's not really cool because we don't have any bass in the center of the room. Just dry medium/high.

    When I'm making music, I always stay near the table with the screen, this is where the sound is the better but obiously the sound isn't stereo...

    Thank you in advance if you can help me!

    Zac
     
  2. abbeystump

    abbeystump New Member

    Messages:
    22
    Location:
    Australia
    So looks like the bass is going straight to the back wall corners and what you hear is secondary boom.I would remove your side couch.Bring your speakers out from the front wall.Then you will hear the front wall secondary boom your missing.
     
  3. Zaccharie

    Zaccharie New Member

    Messages:
    11
    Thank you for your answer!

    Are you sure it's necessary to move the speaker out from the wall? Because the "bass hole" isn't behind the speaker on the 4430. There is no hole behind the speaker... Also, I can't really move the couch, and the problem is exactly the same in both side... :dunno:
     
  4. JoeESP9

    JoeESP9 ESL's & tubes since 83

    Messages:
    14,439
    Location:
    Philadelphia PA
    I'm with abbeystump. Speakers are to close to the front wall.
     
  5. abbeystump

    abbeystump New Member

    Messages:
    22
    Location:
    Australia
    Try it.Move the side couch temporary (even between speakers at front) Bring your speakers forward just before your table with turntable.Measure distance between speakers then sit back the same distance like a triangle middle of speakers.Have a listen for a weekend then get back with your results.!
    move your chair (sweet spot) forward and back a foot for personal taste......:)
     
  6. Zaccharie

    Zaccharie New Member

    Messages:
    11
    Hey, thank you for your meaningful answers! I will try this layout tonight!
     
  7. chef free

    chef free AK Subscriber Subscriber

    Messages:
    1,962
    Location:
    Oakland! What?!
    Read the Listening Spaces forum and find out about bass traps. They do more than taming bass humps, they can increase perceived bass in the room.

    I agree with the idea of moving speakers, placement has a HUGE effect on the sound, it is the cheapest upgrade ever!

    Have you tried placing the speakers on the long (6 meter) wall? I helped a friend move his speakers to the long wall and there was better bass.
     
  8. JoeESP9

    JoeESP9 ESL's & tubes since 83

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    Location:
    Philadelphia PA
  9. djnagle

    djnagle Lunatic Member

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    11,601
    Location:
    Albuquerque, New Mexico
    Great the room with bass traps from floor to ceiling in all four corners....OR....install 3 or 4 subs.
     
  10. turnitdown

    turnitdown AK Subscriber Subscriber

    Messages:
    1,240
    Location:
    Tallahassee, FL
    Get them off the stands for starters. In a room like that, you need reflection from the floor. All your furnishings act as sound treatment and damp the bass and reflections. Most folks with hard surfaces need to put these on stands. In your case, you need the room to interact some. This is all predicated on your upstream equipment being capable of good reproduction.
     
  11. JoeESP9

    JoeESP9 ESL's & tubes since 83

    Messages:
    14,439
    Location:
    Philadelphia PA
    Placing those speakers on the floor will tend to make the bass "boomy" and ill-defined. This is commonly known.
     
  12. turnitdown

    turnitdown AK Subscriber Subscriber

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    Location:
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    ^^^^^
    Yes, in normal circumstances, without damping. His room has plenty and it costs nothing. Worth a shot.
     
  13. turnitdown

    turnitdown AK Subscriber Subscriber

    Messages:
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    Location:
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    And, toe them in at 45 degrees as another free experiment.
     
  14. JoeESP9

    JoeESP9 ESL's & tubes since 83

    Messages:
    14,439
    Location:
    Philadelphia PA
    Most bookshelf speakers will produce the best and smoothest sound when they are away from the front and side walls. They are usually designed to be listened to with the tweeters at ear height, which means stands, when listening and pretty much on axis. In other words, point the tweeters at the listening position.
     

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