Fostex FE206NV and Fostex Horn

[Ramey]

Hello. My name is Cristian Peregrino and I am from Argentina.
I have a pair of Fostex FE206NV in a bass reflex (55 Liters tuned to the Fs) .
I plan to build some Horn.
I have three designs in my head. Karishima, Joan from The Frugel Horn and the one proposed by Fostex in the driver's data sheet.
Did someone build this box? What impressions do you have?
Thanks.
Christian

 

[planet10]

The best factory designs have been OK. Many are poor.

Kirishima or Vulcan would be the pinnacle (at teh price of a tall box)

dave

 

[ColinA123]

Dallas II horn should work with those as well.

http://frugal-horn.com/downloads/Dallas2-plans-redraw-120618.pdf

 

[planet10]

Yes, Ron’s Dallas II probably represents the best small horn.

dave

 

[hm]

i would prefer the Schalmei with sub in small rooms or the Saxophon and RDH20 or Posaune XL

 

[planet10]

If you are going to use the NV with a woofer, a better alternative might be Bottlehead-style, put it in a sealed box (7 litres looks about right), use the 2^nd order roll-off (120 Hz) to match to a powered woofer each side.

dave

 

[DrBoar]

Small horns really are quarter wave pipes in the bass region. The Schamackshorn is a good horns, I have heard them with JBL 2110 turning out insane levels of bass.
(One of many sites)
https://www.radiomuseum.org/r/isophon_exponential_hornsystem_h530.html

 

[DrBoar]

I migth add there is a variation of this horn with a resonantor chamber and and the driver located diffrently
http://agalavotti.altervista.org/side/lowther1.html

 

[@Michael]

Yes, Ron’s Dallas II probably represents the best small horn.

dave

I would not call them small. Quite complicated enclosures to construct, too.

 

[planet10]

Compared to Vulcan or Kirishima, Dallas is small. They are all complicated, Ron’s having angles the others do not.

dave

 

[Ramey]

What do you think of that design? It is a modification of the Fostex FE208 Sigma horn. https://backloaded.exblog.jp/25136139/
Thanks.
Christian

 

[planet10]

You’d have to do a sim. The starting point is one of the better factory horns, but keep in mind all the originals were designed for the FE206e/FE208∑ generation of drivers.

dave

 

[Ramey]

You’d have to do a sim. The starting point is one of the better factory horns, but keep in mind all the originals were designed for the FE206e/FE208∑ generation of drivers.

dave

Yes. I plan to use them with a pair of Fostex FE206NV. I hope they work weel too.
Thanks. There is not much reference to fostex FE206NV and horns.

Christian.

 

[Ramey]

I found this on a Japanese blog. It looks a lot like the Dallas II. Will it also work for the Fostex FE206NV like the Dallas II? This box is easier to build.
Christian