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  #1  
Old 25th February 2016, 08:51 AM
simcox1 simcox1 is offline
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Default Making speaker cabinets

I have decided to make a pair of wd25a speakers. I have bought the driver units so far. I found the standard tweeter on ebay. I feel I could really use some advice with this. I am a complete novice, having never built speakers before. I have recently completed a KEL84 kit.

What I need to do next is the cabinet. I don't really have the tools or space to do much woodwork. I have tentatively approached a local timber merchant, who have 19mm oak veneered MDF, and can do cutting. But if anyone has made WD25A cabinets themselves from scratch, I would appreciate some advice. What would also be great, is if there might be a crossover PCB lying around unused somewhere. I did think about getting the EX treble unit, as it is still available from Falcon, and is much cheaper than it used to be. But still quite expensive (150 each).

Any replies greatly appreciated.

Thanks,

Simon
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Old 25th February 2016, 02:55 PM
Richard Richard is offline
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Default Re: Making speaker cabinets

Hi Simon,

I can't remember if there was a pre-cut cabinet kit available for this speaker. Can anyone help? Thoughts are you may be able to ask the original supplier to do a set of panels - unless someone still has some or cabs they don't need?

Otherwise I've built various speakers and the hardest part (for me) was getting really good corners. The kit designs in the 70's when this was popular suggested 3/4" or 1" square batons screwed and glued down all the panel edges to join the panels together. The corners were often not designed to be mitred (the hard part for most folk) and were butt joined with a finishing strip on the edge.

I had panels machine cut at the woodyard. That does depend on getting a friendly guy to do the cutting accurately and expecting to pay him. I used plain chipboard so they were screwed and glued from the outside and finished in veneer or laminate after so the corners were taken care of, but it was a bit of a labour of love.

For pre-veneered boards you could go for a similar baton and butt joint by screwing and glueing the batons to the panels from the inside. Just re-do the panel dimensions to allow for the butt joints rather than mitred then edge the outside panel edges top and bottom with matching veneer strip.
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Old 26th February 2016, 08:48 AM
simcox1 simcox1 is offline
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Default Re: Making speaker cabinets

Hi Richard. I think the cabinet came pre built, rather than as a kit. But the construction article gives quite clear instructions. One thing I'm not sure about, is the top and bottom panels. It looks like I need to cut into them to leave a 9mm lip all around. I think it's really just a matter of finding the right place to supply the wood and cut everything for me.

My local place is Wood Green timber in Haringey, London. They stock veneered MDF. But I'm not convinced about their service. I just need to know exactly what I'm doing, before I go to them.

Alternatively, I could go out and buy some tools, and try to do it all myself. It would probably be cheaper to get them to do it. I guess I will work it out.

Thanks for the reply.
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Old 26th February 2016, 10:35 AM
John Caswell John Caswell is offline
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Default Re: Making speaker cabinets

B&Q used to do a very good cutting service, if you bought the timber from them.

John
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Old 26th February 2016, 03:50 PM
simcox1 simcox1 is offline
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Default Re: Making speaker cabinets

I hadn't thought about B&Q. Someone posted a link to Peter Benson plywood, and I have asked them for a quote. I will check B&Q as well. Thanks.
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Old 27th February 2016, 07:53 PM
Edwin Edwin is offline
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Default Re: Making speaker cabinets

Simon, I built cabinets for the 25 T a few years ago and I would gladly email you some information about how I put them together because the principles would be much the same. The panels were made of 12 mm chipboard bonded to an outer cladding of oak veneered MDF. The top corners were mitred and there were solid oak strips on all the edges where the front and back panels met the sides and top. I avoided any internal battens to join sides to back and front because I didn't want to change the internal volume even by a small amount.

I would gladly send you details of how I did the whole job. However, I'm not sure how limited your space, experience and toolkit are. The various internal braces have to be carefully cut to a pattern and the cutouts and rebates for the speaker units have to be done with some precision. One indispensable (in my opinion) tool is a router. Though B&Q might cut the panels, I think you would have to find some other means of doing the rest.

Let me know if you think I might have anything useful to pass on to you.

Edwin
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