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Old 5th November 2004, 05:26 PM   #1
Onur is offline Onur  Belgium
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Default Has anyone tried the Singular Enclosure :) ?

For those who are interested ...

http://www.diy-systems.com/en-us/dept_10.html
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Old 5th November 2004, 09:46 PM   #2
Ropie is offline Ropie  United Kingdom
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That's a big hybrid-type enclosure. What's the purpose of the panel with the four holes cut in it at the rear of the line?
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Old 5th November 2004, 10:41 PM   #3
Sjef is offline Sjef  Netherlands
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I have not tried it myself but I have listened to it at Bert Doppenberg's place. The loudspeaker used was an AER MKI.
Mids and Highs were very good, very detailed and coherent. Best Highs I have ever heard from a fullrange driver, ribbon like resolution but with the guts and balls of a bigger dome tweeter. Tonal balance a little bit on the bright side but not near as bright as the typical Lowther sound. Bass output was limited in extension and power but basslines were very easy to follow. Stereo imaging was a bit on the small side (due to the lack of real low bass maybe) but very stable and precise. The sweetspot, while not huge, was much bigger than I expected. Except for the lowbass extension and capabilties it's a very nice system with no horn colouration or any noticable cabinet colouration.

They have all the goodies from a Lowther system (Dynamics, livelike sound and precise imaging) but you don't have to take ten aspirines after an hour of listening
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Old 5th November 2004, 11:14 PM   #4
Onur is offline Onur  Belgium
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Default panel with 4 holes

Quote:
Originally posted by Ropie
That's a big hybrid-type enclosure. What's the purpose of the panel with the four holes cut in it at the rear of the line?

It is simply there for to distub the waves, which are reflecting from the back of the enclosure. There were much reflection from the back of the enclosure radiating to my listening room through the thin cone of AER MK1s and I've decided to reduce the magnitude of the reflected waves by placing some obstacles on their way. On the other hand, I didn't want to divide the rear chamber into two parts, since I didn't know what may be the result of such a change therefore I have drilled holes to balance the pressure on the sides.
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Old 5th November 2004, 11:36 PM   #5
jlsem is offline jlsem  United States
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Quote:
It is simply there for to distub the waves, which are reflecting from the back of the enclosure.
What is the damping material?

John
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Old 5th November 2004, 11:50 PM   #6
Onur is offline Onur  Belgium
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Quote:
Originally posted by jlsem


What is the damping material?


It is one of the most important things about this TL. In theory you do not need any damping material, the enclosure handles the unwanted frequencies itself and yet you still can not sonically point your finger that you are listening to a TL design. But in real life things don't work out as they do on paper. When you need to fine tune the enclosure and when T/S parameters can not be anymore help, I prefer to use fiber which is 3 cm thick. The most important point about placing the damping material is not to fill the cross-section of the line completely.
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Old 11th January 2005, 09:57 PM   #7
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Hai,

I am going to build the singular speaker i have orderd the speakers and i am getting working on the wood.

Greetz Maarten
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Old 12th January 2005, 09:45 PM   #8
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Here a image.
Attached Images
File Type: jpg singular_isometric.jpg (20.0 KB, 2357 views)
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Old 13th January 2005, 12:11 AM   #9
jcake5 is online now jcake5  United States
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Default Some Technical Questions for Onur

Onur,

My first post to this forum so please be kind if I am not following proper procedures for the posting of responses or the asking of questions.

I have been trying to decide on a design to follow for a new speaker system and the Singular is high on my list of designs and thank you for posting the design for the DIY community.

But I am wondering about the what I believe to be is a tuned reflex chamber that you employ behind the driver. What purpose does this chamber serve and how did you decide on volume and the tuned frequency if it is a tuned chamber?

Also, how did you decide on or calculate the cross-sectional of the transmission line?

Do you have a complete technical description that you care to share?

Lastly, can the designed be scaled for smaller Fostex drivers and if yes could you please share the methods to follow to scale the design?

Best regards,
Eric
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Old 20th January 2005, 08:13 PM   #10
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Quote:
Also, how did you decide on or calculate the cross-sectional of the transmission line?
Have you read this?

http://www.t-linespeakers.org/readme1st.html
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