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Post by Darren on Jun 9, 2006 16:27:43 GMT -7
I'm beta testing some 15" drivers which may not end up being the drivers I use in my final install. I noticed their outer diameter is significantly less than the alternate driver I'm considering. The difference is that one is 15.25" and the other is 15.625". The inner diameter (surround) varies by 1/8".
1. The beta driver is 15.25" outer diameter and 14" surround diameter.
2. The other driver I'm considering, either an AV15 or IB15 will have 15.625" outer diameter and 14.125" surround diameter.
I'm not sure I can safely design a manifold that would accomodate both drivers. There wouldn't be much meat left for the smaller driver to seat within the recess.
Has anyone dealt with this? Will I have to build two manifolds? Yikes.
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Post by ThomasW on Jun 9, 2006 19:05:25 GMT -7
How about cutting out an adapter ring from some scrape material?
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Post by Darren on Jun 9, 2006 21:38:16 GMT -7
I thought about that, I guess I'm trying for the best overall solution. If I end up going with the beta test drivers then I'll be stuck with an adapter ring permanently... doesn't sit well with me. I suppose I could cut the smaller holes for the beta drivers and if I go with the larger ones I'll just have to remove the manifold and cut the holes bigger...kind of a pain but might be the only solution my anal mind could deal with.
I'll have to think on it a bit but not too long because I'm determined to get this up and running tomorrow.
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Post by chrisbee on Jun 10, 2006 0:39:41 GMT -7
Purely as an observation one would think that nominal driver diameter should be standardised by now. As should the PCD and number and size of holes for the fixiing screws.
Fitting drivers adaptor rings: The way I'd do it is make much larger rings (for strength) using a router. These adaptor rings of various internal diameters can be screwed into place flush with the manifold surface as follows:
If you want a tidy appearance you could use rings of two different external diameters. One diameter to fit a smaller hole in the MDF and the other diameter to fit a larger hole in the flakeboard. (OSB) Or vice versa.
This would give you a stepped (or flanged) ring for very little extra effort once they are glued together. One which can be screwed in flush from either the outside or inside of your manifold (or baffle) to taste. Depending entirely on whether you make the larger hole inside or outside the box.
I tried to find an illustration in Google images but failed. So I hope you can understand my description above.
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Post by Darren on Jun 10, 2006 7:56:54 GMT -7
I think I know where you are going with the different rings. I'll have to toy with the idea a bit but because my manifold is just big enough for the drivers to fit width wise it might be tricky... I'll post what I come up with.
One thought I had was to just mount the smaller ones without a recess making the cut through the size required for the larger one which is only 1/8" larger (surround diameter) and if I decide to go with the bigger ones I can then just use a rabbet bit of appropriate size to route the recess for the larger driver or just mount them flush as well...
I know, I'm showing my obsurdly anal side but that's me! I'm gonna try and get this thing rockin' today sometime but I'll be painting the inside white before I mount it so it might not be operational until tomorrow... we'll see!
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Post by Darren on Jun 10, 2006 19:24:49 GMT -7
I actually ended up routing the recess for the larger sized driver and the cut through is also the larger size, placing the smaller one in the recess actually worked, the seal is good. No worries. Just have to finish painting the inside of the manifold now and I'll be in business tomorrow afternoon.
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