FE206E Back Loaded Horn Type Enclosure

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The guy that I have been buildng amps for is a prefessional cabinet maker and he can pretty much make anything happen with wood. He could probably hook me up with complicated designs like the ones that I found here:
[url]
http://www.madisound.com/pdf/fostexcabs/166e_encl.pdf
http://www.madisound.com/pdf/fostexcabs/206e_encl.pdf
[/url]
I like the simplicity of Voigt Pipe, but it's not very aesthically appealing. Besides, I have a very energetic a 1.5 year old toddler that would love to climb on them. I would need something that have more center of g.

My question are:
1) Does the horn design use the quarter waves like Voigt does? My guess would be yes due to those wave paths inside the cab.

2) Does any one have any experience with back loaded horn design? How do you like it. How's bass response?

3) What's the electronics involved in these speakers? Any need for baffle step correction?

Thanks! -Min

P.S. the extend of my DIY speakers is virtually next to none.[/url]

[EWBrown]

The Madisound BK-16 enclosure kit ($98 per cab, all cut and prepared, shipped as a "flat") is perfect for the FE-166E, and the BK20 cab kit ($210 each, larger and heavier) is the perfect match for FE-206E or its siblings.

The internal design is simpler than that shown on your attached links, so I can't vouch for which is better.

In either case, you'll need the connector "cup" with the binding posts, one for each speaker, the site tells you which ones are correct.

In either case, the speaker cone is exposed and if you have wee curious toddlers, then the speaker cone should be protected from busy little prodding and poking fingers... Another consideration is, that if you have kittens, puppies or even adult cats, they WILL try to climb inside the horn opening in the bottom and probably manage to get stuck inside the depths of the folded horn "matrix" and that would take something like the Jaws of Life to extricate them. So, be forewarned. It's not a matter of IF, it's a matter of WHEN...


There are no internal "electronics" and a BSC could be used at the power amp's line input if it seems to be necessary, that can be made with resistors and caps, though I don't know the magic formulae and secret incantations required to design those.. Yellow_Light_Colorz_PDT_09 Yellow_Light_Colorz_PDT_02 Yellow_Light_Colorz_PDT_03

There is sime sealed up "empty space" in the lower back finished BK series cabs, those could be filled with lead shot, available at any gun store, (best to leave it in the cloth bags) for extra weight, although these beasts are pretty heavy to start with, it can help add to their safe stability, as it lowers the center of gravity substantially.

The complete BK-16 kit includes the FF165K drivers, T-90A supertweeters (almost half the total cost)., the made R-C "crossovers" which plug into the binding posts on the back, and some fancy flat speaker cable which is more glitz and glamor than truly practical. Also, some "dynastuff" or similar fiber filler needed, or you can cheat like I did and use the similar "poly filter" stuff (which looks like cotton wool), from the fish department at most pet shops. I'd bet they are the same thing...

You definitely DON'T want to do what I had read about on Bottlehead, some enterprising speaker-builder decided that nice fresh "virgin" wool, freshly sheared off some sheep from a local farm, would be the earth-friendly and organic secret to sonic bliss.

What he ended up with was two speakers that eventually stunk so badly that he had to get rid of them (before his wife got rid of him) :o

/ed B in NH

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Hey Min,


Would your cabinet maker friend be willing to cut some MDF or Baltic Birch per specifications and how much would be charge for something like that?


I've been wanting to build a Buschhorn or something similar but don't wanna tackle the cutting myself.

[Geek]

Here's a couple of useful links for Fostex designs 8-)

http://www.planet10-hifi.com/boxes-fostex.html
http://www.frugal-horn.com/

Cheers!

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Hey Min,


Would your cabinet maker friend be willing to cut some MDF or Baltic Birch per specifications and how much would be charge for something like that?


I've been wanting to build a Buschhorn or something similar but don't wanna tackle the cutting myself.

I will ask him. He's out of town for the weekend.

The Madisound BK-16 enclosure kit ($98 per cab, all cut and prepared, shipped as a "flat") is perfect for the FE-166E, and the BK20 cab kit ($210 each, larger and heavier) is the perfect match for FE-206E or its siblings.

They are sold out at Madisound. Anywhere else to source BK-16s?

[ecir38]

They are sold out at Madisound. Anywhere else to source BK-16s?

audiogon has a pair for sale http://buy.audiogon.com/cgia/cls.pl?ampstube&1203692177

There are some nice designs where geek recommends with allot of support here http://www.diyaudio.com/forums/forumdis ... forumid=51

I am condering the Sachiko from the spawn family to use with the FE206E. Here is one thread with a build right now http://www.diyaudio.com/forums/showthre ... did=113758

Sachiko
http://www.frugal-horn.com/spawn-plans.html

If he is good then you should look at the Dallas II too.
http://www.frugal-horn.com/ronhorns.html

The Metronome should be pretty easy to pull off and should meet the WAF.
http://www.frugal-horn.com/metronome.html