My systems 1

Pepe57

Well-Known Member
Jan 25, 2014
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Milano Italy
Here is my single drive full range speaker made by Bé Yamamura.


dionisio1bis.jpg

yamrackbis.jpg

monacogpbis.jpg

fm122bis.jpg

s6dc.jpg
 
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MylesBAstor

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Apr 20, 2010
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Welcome Pepe! That is a one of kind system!
 

Pepe57

Well-Known Member
Jan 25, 2014
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Thank you for your kind words and please frogive my mistakes (i don't speak english very well).
:)
 

treitz3

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Dec 25, 2011
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Hello, Pepe57 and welcome to the WBF. Nice system you have there. I am curious as to why you have two benches in the direct path of the speakers. Is there a specific reason for this?

Tom
 

Peter Breuninger

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Jul 20, 2010
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Great system. Welcome to the best forum on the ole' net.
 

Pepe57

Well-Known Member
Jan 25, 2014
90
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Milano Italy
No specific reason, in these chests are stocked some LP.
:)
Pietro
 

Pepe57

Well-Known Member
Jan 25, 2014
90
20
115
Milano Italy
Thank you Peter & William.
:)
Pietro
 

Pepe57

Well-Known Member
Jan 25, 2014
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Milano Italy
@ZZTOP7:
the con e was hand made by Bé Yamamura in Japanese drawing paper. The interessino thing is that, for Be Yamamura, this cone, to reproduce more frequencies than possible, must be as lighter as possible. To do this Be designed it without periferica suspension. The black you see around the con e in reality is made in a strange kind of very light paper (it seems toilet black paper) just to push air into the back horn.

2wib.jpg


The cone is kept in the right position by some thin wires in carbon roughly in an hexagon position working like a F1 suspension.

IMGP0006.jpg

This is the 4^ series of the Cantus speaker (the driver is 150mm diameter).
In the beginning there were 2 possibilities, 200 mm and 150 mm, but speaking with Be Yamamura i preferred the 150 mm.
The first version was different, the suspension was made by carbon fibers rings and the paper was washi paper.
There was not the "toilet paper" to push air in bach horn, this caused a loss in dept and level of low frequencies.

Here is the pic of the 1^ 150 mm (around 6 inches i think) Cantus speaker that were used on the Dionisio 27.



You can see the difference of the color of the paper and that there is no periferic suspension but just the carbon fiber rings.

:)
Pietro
 

zztop7

Member Sponsor
Dec 12, 2012
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Pepe57 wrote: "The cone is kept in the right position by some thin wires in carbon roughly in an hexagon position working like a F1 suspension."

So it has a pull-rod suspension [vs. push-rod suspension used by most other teams] similar to what is on Fernando's & Kimi's 2014 Ferrari F1 cars [and years before also].
Very, very interesting & looks like a Great Driver.

40+ years ago many speaker manufacturers produced very light paper cones that went all the way to the basket glue area. No cloth. A famous one was the ElectroVoice SRO. 12 inch [305mm] / 25 pounds [11.4 Kilograms] due to the Alnico mangnet.

Best to you,
zz
 
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jazdoc

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Aug 7, 2010
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Wow, simply marvelous!


On a side note, I am available for adoption...;)
 

Pepe57

Well-Known Member
Jan 25, 2014
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Milano Italy
Thanx for all of you.
:)
 

jazdoc

Member Sponsor
Aug 7, 2010
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Before adoption you might have to legally disclose Boston/Berklee cost factors...;) or are you running away from home? ;)

zz

Shhh! Need to keep this quiet...
 

Pepe57

Well-Known Member
Jan 25, 2014
90
20
115
Milano Italy
Excuse my english but...
i am trying to traslate: " Before adoption you might have to legally disclose Boston/Berklee cost factors... or are you running away from home? "

and i am not able to give it a meaning.
Is it a sentence that has a pericolar translation perhaps?

:)
Pietro
 

jazdoc

Member Sponsor
Aug 7, 2010
3,320
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Excuse my english but...
i am trying to traslate: " Before adoption you might have to legally disclose Boston/Berklee cost factors... or are you running away from home? "

and i am not able to give it a meaning.
Is it a sentence that has a pericolar translation perhaps?

:)
Pietro

Pietro --

zztop7 is having a little fun with me. I'm the proud father of a music student at The Berklee School of Music in Boston (http://www.berklee.edu/). Like many colleges here is the US, the size of the tuition bill is akin to the numbers typically used in astrophysics (but worth every penny).
 

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