Spawn Olson/Nagaoka Horns the Next Generation

[Godzilla]

Nagaoka would be so proud! These may be the most advanced cabinets to date for their associated Fostex drivers. Kudos Scottmoose and Planet 10! Fantastic!

Zilla

 

[Scottmoose]

Thanks.

Essentially, these are refinements of the old cabinets; changes aren't overt / dramatic, but I'd like to think Nagaoka-san would have liked them. The internal configuration & folding of these cabinets was inspired by Harry Olson's Studio Horns.

 

[Godzilla]

Scott, i love how they are about the same height and depth. DIYers can build them in stages and get a bit of an upgrade without having to change around their listening space. It's apparent you were disciplined in their design, keeping things as consistent as possible. I always wanted to build a double mouthed horn… maybe one day (when things settle down a bit) I will build one of these.

Fostex should pay you royalties.

 

[Etocynned]

Which fostex drivers are compatible with the revised enclosures?

 

[Jockaruba]

Thanks!

I have begun studying the Kirishima plan.
Here is a question: the Sachico has a brace or a tongue on panel A that is supposed to ga against the driver. The Kirishima plan hasn't. Am I correct to assume there is no more need for this brace?

Best regards,
Jock

 

[pbullblue]

I just finished building my BK-12s. I think I may also build the Kongo. Worth my while?

 

[doubtingthomas]

Thanks!

I have begun studying the Kirishima plan.
Here is a question: the Sachico has a brace or a tongue on panel A that is supposed to ga against the driver. The Kirishima plan hasn't. Am I correct to assume there is no more need for this brace?

Best regards,
Jock

I was wondering the same thing.

 

[planet10]

Here is a question: the Sachico has a brace or a tongue on panel A that is supposed to go against the driver.

It is still optional, and IMO a good idea. That will be part of the (non-existant as yet) last page of notes along with how to change material thickness...

dave

 

[chrisb]

Which fostex drivers are compatible with the revised enclosures?

as noted on the opening page of document, be the new FExx6-EN series i.e

Kongo = FE126
Haruna = FE166
Kirishima= FE206

 

[clk230]

hi, were can i find the plans for these ?

thanks oscar

 

[Scottmoose]

hi, were can i find the plans for these ?

thanks oscar

Post 39.

 

[clk230]

how'd i miss that read through the whole thread , just need to build and replace the frugal horns without the wife noticing lol.

 

[chrisb]

how'd i miss that read through the whole thread , just need to build and replace the frugal horns without the wife noticing lol.

good luck with that - although if she's into the sound , she might welcome them


mine's not, and generally doesn't care for anything that stands out visually - hence my penchant for simple lines and grilles

 

[Scottmoose]

Just tell her they grew, like mushrooms.

 

[ampzilla]

Has anybody try this design using a 15" coaxial? ALTEC / RADIAN

 

[Scottmoose]

Which design? I haven't done one for 15in drive units, coax or otherwise. The three cabinets here are for the Fostex FE126En, FE166En and FE206En.

That's not to say it couldn't be done of course -that really would be quite close to Harry Olson's Studio Horns. Well, relatively.

 

[pbullblue]

Ill ask again. Will I experience worthwhile improvements with the kongo over thed bk-12. I'm very pleased with the bk-12 but if the kongo is noticebly better I would like to build them. I do plan to build the 206 version but really like the idea of a small driver.

 

[chrisb]

Ill ask again. Will I experience worthwhile improvements with the kongo over thed bk-12. I'm very pleased with the bk-12 but if the kongo is noticebly better I would like to build them. I do plan to build the 206 version but really like the idea of a small driver.

Having heard a variety of single and double mouth horn-ish designs using FE126E/En over the past 10yrs - including the BK12 - I'd suggest that providing you have the room for them to work, the Kongo would substantially "out-scale" the BK12.


I'm also a big fan of the Valiant

 

[Scottmoose]

Different power response in-room, another 20Hz extension on the bottom end. Whether you consider it to be better or not depends on how you define 'better' though. Swings & roundabouts really.

 

[pbullblue]

Thanks Chris and Scott. That's what I wanted to hear.
Chris, I looked at the valiant, I like that design also. If it were you which of the two would you rather have?