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Old 7th May 2009, 06:29 AM   #1
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Default OPen baffle mounting and decoupling advice

Hello,
I have previously benefitted from advice in this forum. Thank you! However, I have two more questions prior to finishing what will be a one of a kind build, sure to cause a reaction.

I have two issues: driver mounting and decoupling methods.

In an attempt not to reveal too much, I might have an issue mounting the driver. I cannot simply screw into the material for fear that the material might break, due to there being such a minimal amount of space between the driver cutout and the mounting holes. Magnet mounting is absolutely out of the question considering that the magnet is absolutely gigantic. I cannot add more mass to the rear of the driver. I once saw a person use rope to mount the driver to the baffle. Does anybody have atypical suggestions.

Also, what are some decoupling methods.
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Old 7th May 2009, 06:52 AM   #2
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Any pictures of the driver?
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Old 7th May 2009, 07:35 AM   #3
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EJ Jordan JX92S
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Old 20th May 2009, 01:30 AM   #4
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Can you clamp it with screws through flanges (rings) on front and back of baffle? Flanges could both have through holes or one could have threaded holes, in-line with the driver mounting holes or outside the outer edge of basket. Or just one flange on the rear with woofer mounted from front...
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Old 11th June 2009, 09:59 AM   #5
THWO is offline THWO  Germany
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Hi Irishpatrick33,

how about building sort of a clamp around the rear part of the magnet, holding the entire unit and pressing it against the baffle? It should be positioned well behind the back side of the membrane to still let the reverse air escape freely.

Construction could be two halfs of a ring being screwed together and creating the needed pressure on the magnet to hold it firmly enough. This clamp could then be held by a frame being connected to the back of the baffle.

Other Idea might be to use a metal band instead of the two wooden ring halfes being wound around the magnet.

Decoupling would then be achieved by having some foam layer between the holding construction and magnet as well as between mounting front of the driver and rear of the baffle.

Just raw ithoughts - may be it can give you some idea of developing the ideas further...

Of course I am very curious now regarding your ultimate "top secret state of the art project"...

Let us know how you finally did / will do it!

Regards,
Till
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Old 11th June 2009, 12:39 PM   #6
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Why not just glue it in place? I have used silicone adhesives in the past for this very purpose and this does allow you to remove the drivers later should it be necessary to do so. I have used these Jordans in the past, and they are not too heavy for this method.
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Old 17th June 2009, 11:25 PM   #7
THWO is offline THWO  Germany
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Another idea that should work:

You could support the holes for the screws by adding small but sufficient pieces of wood on the back side of the baffle, a bit closer in. The hole in the baffle front may be widened enough not to break when the screws passes through, but the support pieces (not MDF) should hold the pressure.

Firstly, I thought of adding another ring with narrower diameter but then figured that this would prevent a free air flow from the back side of the driverīs membrane. So I mentally cut off all wood from this virtual ring being not needed for supporting the screws and came to said little wooden bricks.

If these "bricks" are a little bit longer and will be arranged with its longer part in direction of virtual spokes around the mounting hole, like romain numbers on a clock, it can (although being glued onto the board) even be fixed itself firmly by an own screw. Then the "bricks" should be stable enogh to withstand any pulling pressure when tightening the driverīs screws.

Till
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