FE206En based BLH speakers

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I have currently FE166En back loaded horns at home:

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I'm planning to build FE206En based encosures, based on drawings at Fostex site. Are thay good? Any personal experience?

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Do You recommend to add also Fostex super tweeters? I see, that FE206's frequency response is pretty good at 10-20kHz region.
 
Re:Fe206En build

No I did not add the tweeters. I was very happy without them. I listen to mainly Jazz and some classical...Since the imaging and reproduction is very good for me I did not feel the need to experiment further...
 
The Fostex horn is designed for ease of build more than for getting the most performance out of the driver. If you like your speakers, then you'll likely like the fostex box, but be aware that a few other box designs may be even better in the low frequencies, sometimes at the cost of ease of build. For example, Ron Clarke's Dallas 2 horn is said to be exceptional.
Between designs, if the horn length is similar, then a different design may give you a somewhat different quality of bass, but likely not a much different quantity.
 
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The Fostex horn is designed for ease of build more than for getting the most performance out of the driver.

This was also my concern. Construction looks sturdy and easy to build, but this is far from "perfect exponential" horn, rather there is a series of opening parallel tubes.

I've found images of the enclosures with much better horn intersection, some without measures.

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An externally hosted image should be here but it was not working when we last tested it.


An externally hosted image should be here but it was not working when we last tested it.
 
I built a pair of the factory horns last summer, They are the best sounding speakers I have heard - indicating I may have limited exposure to good speakers 🙂

I have started a set of the Sachikos for my next project. From what I have read I may soon be the only person to have both for a side by side compare.

For my money the factory designs are not a waste of time.

JMHO
 
The Fostex factory horns are poor to adequate depending on which one. We have burned more than a few test builds. The RonHorn, Frugal-Horn (ie Sachiko), and Woden horn mentioned so far are all, IMHO, a better choice performance-wize.

dave

Since I have not heard these modern horn designs, can you describe in what respect they are better? Is the bass perhaps more detailed, more correct? (I assume that there is only a difference in the low frequencies, right?).
I think that I have heard the factory horn at a big german DIY event a number of years ago, and I also heard various smaller Fostex boxes. I remember that they were all reasonably ok for the money (I thought that tonality was lacking somewhat in most of them), but then I heard AER speakers later that day and these were something else entirely.
 
Any resonable BLH is a hybrid between resonanting quarter wave pipe and a "true" horn. Something like the Fostex is clearly anyting but a smoothly expanding horn. This does not mean that they have to be bad. In any BLH smaller than the Klein-Horn you will have (pipe) resonances. By clever folding and other irregularities these resonances can be counteracted. This is used a lot in the folding of tapped horns.

The Jericho 08 horns are only slightly larger than the Fostex the Schmacs about twise or so. With deeper and flatter bass the horn size grow very rapidly. I have heard the Schmacks with JBL 2110 drivers and they could play at insane levels. I thought it was at least 15" drivers that was shaking the room
 
Is it possible to get Jericho building diagrams, didn't find from Planet10? Are they public domain? Or is it possible to buy flat-pack from Europe?

It is a design from the interesting German Loudspeaker DIY magazine Hobby Hifi, it appeared in their 2/2008 and 4/2008 issues (once with a Ciare HX201, once with the Seas Exotic F8.

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I couldn't find the plan online (which would be of dubious legality anyway), and I can't immediately find my magazine issue back. Hence, best to contact HOBBY HiFi for ordering the magazine.
 
Is it possible to get Jericho building diagrams, didn't find from Planet10? Are they public domain? Or is it possible to buy flat-pack from Europe?
Hi

there are two versions of the Jericho Horn.

The first one ist from Issue 2/1996, there are plans etc. on the web:
e.g. this one:
Jericho Horn Speaker
The first Jericho was contructed for drivers with lower Qts, let's say <0,3
e.g. Fostex drivers.

The second version from 2008 (see title page of Klang&Ton 2008) was made for drivers having a slightly higher Qts, let's say >> 0,35.
E.g. Seas Exotic.
Haven'd found any legal copy in the web up to now.
 
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