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Open Baffle Epiphany!

Discussion in 'Speakers' started by cptnCanada, Jan 7, 2014.

  1. bigaltx24

    bigaltx24 AK Subscriber Subscriber

    Messages:
    1,502
    Location:
    Atmore Al
    Wire them out of phase, place them close together facing each other, throw a blanket over them and feed them FM. I usually start with low volume for the first day then add a bit of volume every day till they are broken in.
     

     

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  2. Samokan

    Samokan AK Subscriber Subscriber

    Messages:
    1,276
    Location:
    socal
    Interesting, you learn something new here on AK all the time. Thanks
     
  3. Roscoe Primrose

    Roscoe Primrose New Member

    Messages:
    13
    Location:
    Virginia, USA
    It'll never completely subside (at least, it hasn't in the pair I've been running in the home theatre every day for a few years now), you'll probably find a notch filter will be required.

    Roscoe
     
  4. Samokan

    Samokan AK Subscriber Subscriber

    Messages:
    1,276
    Location:
    socal
    How is it with the notch filter?
     
  5. Roscoe Primrose

    Roscoe Primrose New Member

    Messages:
    13
    Location:
    Virginia, USA
    Everything is a compromise;) A bit less in-your-face sound from the upper midrange peak, but a bit less lively as a result. Try it both ways, and decide which one YOU like better in YOUR system, that's all that really matters...

    Roscoe
     
  6. Samokan

    Samokan AK Subscriber Subscriber

    Messages:
    1,276
    Location:
    socal
    Thanks Roscoe, will give it time and see what happens and decide on the notch filter down the line.
     

     

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  7. Samokan

    Samokan AK Subscriber Subscriber

    Messages:
    1,276
    Location:
    socal
    I am looking at at purchasing a Behringer 2310 active crossover and will only use it for the alpha. Can anyone advise me on the cable needed, I know I will need a xlr to rca. Just want to make sure which exactly before pulling the trigger. Thanks
     
  8. Poultrygeist

    Poultrygeist Lunatic Member

  9. Samokan

    Samokan AK Subscriber Subscriber

    Messages:
    1,276
    Location:
    socal
    Thanks PG
     
  10. mkane

    mkane AK Subscriber Subscriber

    Messages:
    6,211
    Location:
    103 miles N. of S.F.
    Cobbed up another pair. FR doesn't seem to mind the smaller baffle DSC_0323.JPG DSC_0322.JPG
     
    DavidTT likes this.
  11. BWebber

    BWebber New Member

    Messages:
    39
    They look very nice! Looks like you did that slot loading thing from Nelson Pass?
     

     

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  12. Poultrygeist

    Poultrygeist Lunatic Member

    Excellent!

    Let us know how the SLOB compares to your other OB's.
     
    Last edited: Nov 22, 2017
  13. mkane

    mkane AK Subscriber Subscriber

    Messages:
    6,211
    Location:
    103 miles N. of S.F.
    Nelson Pass design, correct. 5 hrs or so listening time and it good. Bass is nice and tight. I have added an L pad to the FR drivers and adjust as needed. Don't think i need 4 woofers. Mabey down the road I'll try some of those expensive woofers. I don't need thumping bass. Just quality bass and this design is headed in the right direction. It seems defined, not spread out. Mind you I'm only using 2a3's SET's on the woofers. Wondering if more power down there would make a difference. Wife doesn't like em' . She have to deal with it.
     
    opa1 likes this.
  14. mkane

    mkane AK Subscriber Subscriber

    Messages:
    6,211
    Location:
    103 miles N. of S.F.
    Beautification underway, DSC_0322.JPG to keep peace. My wife doesn't care for the way the drivers stick out because of the color. I'm looking around for FR'ers that have a lighter tone cone. Suppose grill covers would solve this issue. Say's she liked the Cornwalls.I'll eventually reproduce these with some kind of laminate ply. SLOB are performing well. I've implemented an stereo L-pad so I can attenuate the FR drivers as needed. Different attenuation levels for different types of music. I have been also considering Lowthers and would appreciate all feedback. Also some different woofers.
     
    Last edited: Nov 25, 2017
    DavidTT and Poultrygeist like this.
  15. mkane

    mkane AK Subscriber Subscriber

    Messages:
    6,211
    Location:
    103 miles N. of S.F.
    Bit of notch filter rolling. DSC_0331.JPG
     
  16. Poultrygeist

    Poultrygeist Lunatic Member

    mkane, I was using the same block terminals as you until I discovered these. Lowes sells them and they're much easier to use and cheaper.

    [​IMG]
     
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  17. Poultrygeist

    Poultrygeist Lunatic Member

    You just insert bare wires in each end and then tighten down the set screw. They make crossover connections a breeze.

    P8060008.jpg
     
  18. opa1

    opa1 Tenacious

    Messages:
    4,307
    Location:
    South Texas
    Just found a pair of Zenith 49CZ852 drivers this past week. Have them in 30 x 18 baffles with a 10" folding section. I'm using them without helper tweeters. Also using a EL-84 SEP amp. This combo is excellent.
     
    rogerfederer likes this.
  19. rogerfederer

    rogerfederer AK Subscriber Subscriber

    Messages:
    3,362
    Location:
    Northern VA
    mark,
    are you using them alone or have you added tweeters?
    oh, and pics are needed:)
     
    opa1 likes this.
  20. opa1

    opa1 Tenacious

    Messages:
    4,307
    Location:
    South Texas
    I'm using the same baffles I had before. They have a pair of tweeters mounted to them but, I don't have them hooked up. I'll get some pic tomorrow. :)
     

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