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Old 9th March 2012, 06:52 PM   #611
bjuck57 is offline bjuck57  Sweden
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Dear fellow diy enthusiasts,
I'm under the spell of the vision of building a quadruple stack of frugel-horns, in the style of Ed Schilling's model 3. I will most probably attempt a build like this in a near future. I have a question about the slight backward tilt of the cabinets; if 'stacking' 2 frugel-horns up side down on top of 2 bottom horns, should the tilt be kept? Or is it a good idea to somehow compensate the tilt to make the cabinet front vertically aligned?
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Old 9th March 2012, 06:59 PM   #612
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I think i have posted this earlier... i'd for one, be VERY interested in seeing someone have a go at these. As can be deduced from the visualization i have preliminary plans already.

Click the image to open in full size.

dave
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Old 9th March 2012, 07:26 PM   #613
bjuck57 is offline bjuck57  Sweden
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Wow!! Dave, thanx for the fast reply and for posting your 3D plans! I will definitely have a go at building these, now that I've seen your plans. Awesome looking and intriguing! I have built Scott's Valiants with Fostex 126En and I am very satisfied with that design. But Ed's model 3 has got stuck in my mind. I see you put a wedge between the lower and upper horns. Elegant solution. I assume that a multiple build like this has been one of the considerations when designing the frugel-horn. Absolutely gorgeous looking speaker! So what drivers would you put in this beast?
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Old 9th March 2012, 07:30 PM   #614
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Quote:
Originally Posted by bjuck57 View Post
I see you put a wedge between the lower and upper horns. Elegant solution.
Actually just lazy... the target was the 3D not the drawing, so what looks like a wedge is the 2 tops intersecting each other. In practise that would just be a dividing panel, and there would only be one thickness in the middle.

In theory you could get away with none of those internal partitions, but to my mind they go a long ways to ensuring structural rigidity.

dave
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Old 9th March 2012, 07:32 PM   #615
bjuck57 is offline bjuck57  Sweden
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Dave, count me in for an Alpha or Beta build. It would be great to be among the first to build a beauty like this! I could begin within a couple of weeks.
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Old 9th March 2012, 07:59 PM   #616
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You can certainly be... i'll dog out and tune the drawings...

dave
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Old 9th March 2012, 08:33 PM   #617
bjuck57 is offline bjuck57  Sweden
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Sounds great Dave!
Hans
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Old 9th March 2012, 10:38 PM   #618
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Default FH3 Build

I am about to build a pair of FH3 speakers using MarkAudio CHP-70 drivers. As always I like to document my projects in detail and make them available to others. I am not using rabbits on the first unit, in an attempt to simplify the design. The second will use rabbits and will require a router table. I expect it will take a month to complete the first FH3 and update the blog. I am in the process of cut plywood now.

Frugel Horn FH3 Build Step by Step
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Old 10th March 2012, 01:15 AM   #619
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Those quads look very cool...

Would you need the center partition in the rear?
I would assume single divider panel between the two?
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Old 10th March 2012, 02:47 AM   #620
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Would you need the center partition in the rear?
I would assume single divider panel between the two?
No. Yes. But you could theoretically get away with no partitions... ie take 4 FH3 missing a side each and no tops and merge them together.

dave
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