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Deep End DIY - My first speaker project

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So, something turned up the other day.  Whatever could it be for?  A Christmas project perhaps...

 

 

12 sheets of 32mm MDF 1200mm x 2400mm

 

 

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That might explain why I have been preparing Cut Sheets in AutoCAD...making a circle cutting jig for the routers...profile jigs for lathes and grinders...sharpening cutting tools.

 

 

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I am probably mad to consider building this behemoth...its weight will not be insignificant.  You can see the individual 32mm slices in green.

 

 

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Below is my first draft of the assembled horns.  Depending on what I find when messing with crossovers and time alignment in particular, I would like to get rid of the frame and anchor the upper components to the big Upperbass horn and make it look pretty.  

 

Those that have an eye for horns will notice the similarities with a famous feline system.  This is not by mistake.  I figure I can mess with this stuff for a decade before I get it right or I can blatantly copy someone that has by all accounts got it very right and massage it to my preferences and save about 8 years out of that decade.  Fingers crossed!!

 

Then there will be the mid and lower bass to sort out...but that will be done when I move into the new room upstairs.

 

 

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Hi Anthony that's a really brave project! Have you got someone in Brisbane to CNC it for you, If not I can recommend someone. Hope all goes well.

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Will all be cut by hand John...a labour of love in front of the Boxing Day Test match.  If all works out as planned (ha...like that will happen!) I will show a cheap and groovy method of building these things that anyone can use without need of a gargantuan lathe.  The profile templates will be CNC cut but no-one I have contacted so far can do it before Christmas...so maybe I will be cutting them by hand also.

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come on Anthony, you can do it mate :)

Alan

 

You are at least partially to blame for this escapade Alan...helping me find all these vintage drivers from around the globe...the project might still be a daydream without your input mate.

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I saw a need and yearning on your part, and you have the guts and desire to back yourself and work out all you dont have answers for right now. Those S2's and Fanes were details of the plan that emerged from the fog of the desire....You are firmly at the start line so good on you for that. Go well. It will all work out with a bit of persistence and seeking answers from those who have had the specific experience. Daydream might be....well....a bit premature? Lets call it a nightmare and then there wont be any disappointments or I told you's :) 

 

Keep us all posted. I would like a bit more details on those back chambers when you get to them-the volume bit. Cheers

Alan

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