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Synergy horn build

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  • shrub0
    replied
    John, any dimensions or tips on making the tweeter mounting pieces?
    Attached Files

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  • jhollander
    replied
    That looks right to me.

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  • shrub0
    replied
    John,
    Is this the correct orientation for the 22 degree bevel cuts? My table saw tilts to the left like yours.

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  • jhollander
    replied
    No not really it's a pretty tight fit so there not much room. There's is minimal effect on the response.

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  • shrub0
    replied
    John, Is there any guidelines to centering the midrange and woofers over the holes they fire into?

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  • shrub0
    replied
    Thanks again John!

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  • jhollander
    replied
    On page 7 of the drawing PDF, page 15 or the write up. I've also attached a picture
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  • shrub0
    replied
    John, I'm preparing to cut the side panels of the horn. I see in the plans both ends should have 45 degree bevels but what is the length of the side panel? Click image for larger version

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  • jhollander
    replied
    Doesn't model like a BP6 as the port is to short. The volume in front of the woofer does change the response but as I recall it's out of the pass band.

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  • shrub0
    replied
    John, will using a 3/4” inch woofer spacing ring negatively effect the woofer response? Is the woofer seeing a bp6 loading since there are ports on each side?

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  • jhollander
    commented on 's reply
    For the port mounting blocks, not exactly, I think I started with 3 inch and cut them down. You can also use wood mount blocks and epoxy in the first piece of pvc pipe

  • shrub0
    replied
    John, do you remember what size the pvc mounting blocks are?

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  • jhollander
    commented on 's reply
    Yes, exactly. As I mentioned in post 133 this is easier to do when the hold down board extends to the saw blade

  • shrub0
    replied
    Ok John, I finally understand, thanks for your patience. So when using the relief cut jig do I just line it up so that the saw will just fully cut the 22 degree angle and not reduce the width anymore then needed?

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  • jhollander
    replied
    Yes that shows the 22 degree relief cut.

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