Since fostex only provide poor quality black and white pictures of their horns (*&^@#!!!) I searched the net and found some colour ones.

pictures from http://melhuish.org/audio/DIYBX14.html

They look nice but they are very very expensive :P H400 is something like ~$500 each (shown above), and the other models are even more.

I think they arn't as "dazzling" as Martinelli's horns, but they probably sound really good (they better well for the price!).

You're right - They are very beautiful and I like their construction. Radial flare, metal throat. Good dispersion and durable construction as well as being very attractive.

Martinelli's throat is billet aluminum with an O-Ring for seal with the compression driver. Super good stuff. And several woods and finishes are available.

I really like both the Martinelli and the Fostex wood horns you've shown here. I much prefer these kinds of horns to "salad bowls" - I prefer their response and their dispersion characteristics - Nice and wide, and with reduced floor bounce. Performance is good and the aesthetics are great.

Have you thought about using the Foxtex wooden horns on a Pi speaker?

Martinelli Wood Horn