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Old 16th February 2007, 04:24 AM   #791
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just checked... Fonken is 13 liters tuned to 59 hz with a port with almost 6x the area of yours.

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Old 23rd February 2007, 02:12 PM   #792
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Phew

I have just read this thread from the beginning. This is great work and in the true spirit of DIYAUDIO.COM. Thank you all.

I am about to build the monopole v0.2.
Are they suitable for wall mounting?
Is any felt required, or just some polyfluff or similar?
I was about to build something with a pair of Jordan jxr 6hd, most likely a 3 litre sealed cabinet, wall mounted again.
Any idea what the sonic differences might be?
I will probably build both sets in the end.
I will be using a sub crossed at about 100Hz.

Best wishes to all.
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Old 23rd February 2007, 08:50 PM   #793
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Quote:
Originally posted by dublin78
Are they suitable for wall mounting?
Yes... removes any need for BSC

Quote:
Is any felt required, or just some polyfluff or similar?
That is a taste and style thing. I like putting a thin layer of wool or cotton felt on the walls and using a lower density of poly-fluff thru-out the box volume.

dave
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Old 24th February 2007, 07:48 PM   #794
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Default FE126 Folded Monopole?

In post 527 Dave says the folded monopole design will not work for the 126. Why? I have a set of his modded 126s on the way and was looking at that box as a short term investment to have something to try them in until I can get to something better like the Frugel Horn. From my reading it seams like it will be due to bad bass but i' not sure if i'm right. If that is the only issue then maybe I can live with it for a few months. Could the design be changed in some way to work with the 126?

In post 373 Moray James posted about his 126 based karlson/TL box and I have searched high and low for drawings but can find nothing. Does anyone have plans for it? I like the look of that quite a bit. Thanks for any input.
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Old 24th February 2007, 07:59 PM   #795
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The Qt of the FE126e means it is less than optimal for an ML-TL. Tim did post an ML-Voigt that looked decent

http://www.diyaudio.com/forums/showt...730#post534730

This can easily be folded (& dimensions shuffled) if needed.

I don't think Moray published drawings for his FE126 design. He has for the 166/167 thou.

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Old 25th February 2007, 12:12 AM   #796
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Folded would fit my desire to have it small. From looking at other drawings of folded pipes it looks like I would just take the pointy end of the enclosure and put it behind the lower part. I would then need to leave a gap across the top of the internal separation. Is this correct and do any drawings exist?

Does the port need to be on the bottom or what effect would moving the port to the front have?
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Old 25th February 2007, 02:48 AM   #797
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Here is a folded variation. Things are a bit tight around the driver, so we turn that into an advantage by making the partition the brace,

dave
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File Type: gif diyref-fe126e-ml-voigt.gif (63.9 KB, 4410 views)
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Old 25th February 2007, 12:59 PM   #798
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I like that a lot thanks for the drawing. How tight should the driver contact the cutout in the brace?
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Old 25th February 2007, 05:59 PM   #799
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Quote:
Originally posted by dj_oatmeal
How tight should the driver contact the cutout in the brace?
The magnet should press tightly against the brace. The part where the back of the cone is needs to be more open. It will look funny, but you could minimize that by rotating the driver so that the partition lines up with a basket leg.

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Old 22nd March 2007, 06:26 PM   #800
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Have a few beginner questions about the monopole design, I decided to try this one as it looks simple to build

http://www.diyaudio.com/forums/attac...amp=1139772600

Where does the 200g of fill get placed and do I use fill as well as felt lining?

Is there something significant about the rectangle behind the driver? is that a physical part of the design or just a visual reference of some sort?

Thanks
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