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In the Forum: Horn-Loaded Speakers
In the Thread: Horn speaker with dipole bass?
Post Subject: BG Neo Horn & My RibbonPosted by Vasyachkin on: 3/8/2010
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 el`Ol wrote:
IMO you can never get realistic imaging from dipole.

this is almost certainly true.
 el`Ol wrote:
Here is a very detailed description of a dipole horn for the BG Neo 3.
http://www.diyaudio.com/forums/multi-way/159731-beautiful-swingin-speaker.html

very interesting link.  that is more or less what i am suggesting.  i like his conclusion:"I've to confess, never worked with such cheap drivers getting such a reward - I really love that babies!"
 el`Ol wrote:
I simulated the Blur when you suggested it and I ended up with very low flux densities if it has to be linear.

when i first written about it i made the MISTAKE of suggesting that the design could tolerate any ribbon width - i later retracted that.  like i said there were ( i believe ) three threads about it.  the first one indeed ( because it didn't have end metal caps and because it was too wide ) had poor field density.  but the final design had density i think on par with regular ribbons - it is posted somewhere on that site along with field density graphs.

you really have to keep ribbon width to about an inch, just as in regular ribbon designs.  that's the part i initially got wrong.  also the metal end caps increase the field, while making it more linear.

in any case thank you for looking into it.

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