Exciting new line of fullrange drivers from Feastrex

[mluckow]

Those are the speakers that were reviewed by Constantine Soo at Dagogo in June.

Constantine Soo reports on living with objects created by master craftsmen and national living treasure of Japan that is the Feastrex Makoto loudspeaker system - Equipment Reviews - Dagogo

[volapuck]

Dave,

Thanks for referencing Floyd Toole and his work on measurement. This is very informative.

Do you have any other suggestions on loudspeaker / room measurement research that you might share?

I have recently finished a dedicated listening room, Winston Ma / George Cardas based. It's front wall behind speakers is 21' x 13' (w x H), length is 34' with the rear wall at ~27' x ~17' (W x H). Yes non-parallel side walls. Uncanny acoustics.

The room is for my Feastrex D9e III; still sitting in their boxes. I did hear them play at RMAF 2008 in Hal's vented box along with the 5e III Nessie. I'm thinking of mating them in Joe's OB Granada like configuration.

Between the unusual room and the active EQ crossover I need to address my shortcoming in measurement knowledge. Any suggestions are most appreciated.

Kevin

[BTW]

Originally Posted by talawalla

Hello Bunpei!

Kindly tell us a little more about the changes from the standard or previous Type III that make the Type III CW driver unique.

Thank you very much,

Joe Cohen

I've just sent my D9e Type I for the CW upgrade... Will post my impressions of the upgrade when I get it back from Mr Teramoto.

[Bunpei]

Originally Posted by volapuck

... The room is for my Feastrex D9e III; ...

Originally Posted by BTW

I've just sent my D9e Type I for the CW upgrade...

It's really a great thing that both of you own D9es.

In Feastrex BLOG page, important parts for Dimension-9 Exiter Type III CW Model were unveiled.

1. Before mounting cone, finished with Urushi by Mokoto Tanaka


2. Yoke with pole piece and top plate, made with 100 % permendur


3. Field coil assembly with CW improvement


4. Magnetic circuit assembled


5. Magnetic circuit and basket frame machined from gunmetal block


6. Zoom up of urushi finished fine surface


7. Cone, voice coil & damper assembly are not completed yet


Dr. Akiyama and Hal are currently busy on making further improvement for a cone, voice coil & damper assembly. Please look forward to seeing a new announce on the product.

Bunpei

[joeling39]

I saw these at the recent Sight & Sound show in Singapore :



It's a Feastex 5 in mounted in a horn cabinet with curves. I think it called algahorn or something.

Regards,
Joe Ling

[serenechaos]

Originally Posted by volapuck

The room is for my Feastrex D9e III; still sitting in their boxes. I did hear them play at RMAF 2008 in Hal's vented box along with the 5e III Nessie. I'm thinking of mating them in Joe's OB Granada like configuration.

Any thoughts from anyone who has heard both Tanaka's tubes and Joe's OB Granada's as to how they feel the tube/OB compares (granted, different driver)?

I went back all three days both year, several times, and really liked the Nessies for what they were, but never heard the Granadas shine...
Maybe the crossover/room correction/amps/who knows what,
or maybe I just like the "resonant" tube sound better than the "bouncy" OB sound?

[planet10]

Originally Posted by volapuck

Do you have any other suggestions on loudspeaker / room measurement research that you might share?

Joe d'Appolitto's book on measuring speakers is invaluable for nuts & bolts techniques.

dave

[commstech]

Originally Posted by joeling39

I saw these at the recent Sight & Sound show in Singapore :



It's a Feastex 5 in mounted in a horn cabinet with curves. I think it called algahorn or something.

Regards,
Joe Ling

It will be more meaningful to have your listening impressions.

[Bunpei]

A new topic from Feastrex BLOG.

A young Japanese craftswoman or craft artist, Ms. Mayumi Ikuta, is exhibiting her craft products at a gallery, Savoir Vivre, in Roppongi, Tokyo.
Though her basic style is in traditional, shapes she created are very modern and stylish.

Among her highly refined Urushi finished original products,



the biggest one is a pair of speaker cabinets using a Japanese traditional technique called "dry lacquer substrate(Kanshitsu in Japanese)" and it mounts basic Feastrex NF5 drivers.


A simple definition of "dry lacquer substrate" is found here. Handbook for the Appreciation of Japanese Traditional Crafts
"Kanshitsu (dry lacquer substrate) = Successive sheets of hemp cloth are pasted over a mould with nori-urushi, a mixture of urushi and rice paste, or a similar adhesive. Once the desired thickness has been obtained, the fabric form is removed from the mould and lacquered. This method allows a high degree of flexibility in the creation of different shapes."
Bunpei remembers that a famous Buddhism statue "Asura" (a Japanese national treasure in Nara) was created by the method about 1,200 years ago.


According to Ms. Ikuta, this method and material can be compared with modern carbon or glass fiber composites.

Dr. Akiyama and HAL are giving their advices on this project.



According to Dr. Akiyama, this design has just started and they have been recognizing some points to be improved so far. For example, Bass.
It is not a closed enclosure. There are totally three openings; at bottom, front and back.

Bunpei listened its sound two days ago briefly and got such an impression;
- No adverse or unexpected vibrations or resonance were perceived on the shell. The shell seems to have very smooth & hard surface and enough strength and rigidity.
- Its sound is very clean, bringing out the best in midrange and treble of Feastrex NF.
- However, as Dr. Akiyama mentioned, bass is to be improved.

In the next post, I will show how to manufacture the cabinet.

Bunpei

[Phil Townsend]

Those are insane looking speakers!!!

If I were walking down a dark street in the middle of the night and I came across those guys I might just run in opposite direction.