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Old 1st February 2011, 04:58 PM   #1401
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Yes the braces took a while. I ended up bracing the braces and the enclosure was very rigid. Internal braces fit together like a jig saw puzzle.
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Old 1st February 2011, 04:59 PM   #1402
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Impressive! My braces for Mar-Kel70 cabinets took hours to do :P
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Old 1st February 2011, 06:23 PM   #1403
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Originally Posted by Godzilla View Post

Nope, not bad at all. Your speakers look nice. Thanks for the info on the chinese driver. Sounds like a winner.
Thank you,
the drivers are the same described here:
Chinese/Taiwan 4 Dual Cone Speakers
They are a bit "bright", but I love them!
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Old 1st February 2011, 08:45 PM   #1404
nebojsa is offline nebojsa  United States
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So postdoc, how do they sound with AN?
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Old 1st February 2011, 09:01 PM   #1405
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Hey nebojsa, I find them somewhat better balanced than the 207e's which I thought were very mid-range forward. I ended up getting a graphic EQ and EQ'ed the current setup to a point where I feel they sound pretty good. Basically I rolled the midrange down a bit. I think the audio nirvana drivers get a bad rap. I enjoy them for general music and also use them while watching movies. The half-chang with an AN driver has plenty of bass, no sub needed.
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Old 1st February 2011, 09:12 PM   #1406
chrisb is offline chrisb  Canada
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Originally Posted by pathdoc2 View Post
Hey nebojsa, I find them somewhat better balanced than the 207e's which I thought were very mid-range forward. I ended up getting a graphic EQ and EQ'ed the current setup to a point where I feel they sound pretty good. Basically I rolled the midrange down a bit. I think the audio nirvana drivers get a bad rap. I enjoy them for general music and also use them while watching movies. The half-chang with an AN driver has plenty of bass, no sub needed.

how do you find the AN from upper mids (say 3K) on up - particularly off axis?

and how about toe-in ?
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Old 2nd February 2011, 12:01 AM   #1407
kach22i is offline kach22i  United States
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Full range?

MUJI Cardboard Speakers
Audio Archives | Travel Gadgets | Travelizmo
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These MUJI Cardboard Speakers, $42.00, are made of cardboard and electronic components, lay flat in a clear plastic pouch and are easily assembled to plug into you music player of choice.
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Old 5th February 2011, 09:16 PM   #1408
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Default My Rex Baldock Tricolumn parabolic horns (pictures)

Hi
Some pictures of my latest built speakers
The Rex Baldocks design Tricolumn from the 60-ties
Its a parabolic backloaded horn facing downwards, and a reflecting tweeter plate om top
I am using the vintage Philips 9710 Ticonal 8" driver (no filter)
Brgds
Pix
Sweden
pixworld@telia.com

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Old 6th February 2011, 05:46 PM   #1409
nebojsa is offline nebojsa  United States
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wow that looks great, what is the range on those, I have never seen a design like this, any more info?
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Old 6th February 2011, 07:14 PM   #1410
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Originally Posted by nebojsa View Post
wow that looks great, what is the range on those, I have never seen a design like this, any more info?
Rex was a clever man, and used very simple designs.
A friend of mine meet him in person at the 70-ties
I got my hands on the drawings/design, where he used two tubes.
Column 1 - inner tube, sound wave travel to bottom, bouncing up again.
Column 2 - between inner and outer tube
Column 3 - outer tube

The length of the tubes make the sound travel in a parabolic horn in three steps
High efficiany and very fast sound, using old vintage paper cones with alnicos.

Regards
Pix
Sweden
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