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Old 1st September 2009, 07:15 PM   #1
CosmoA is offline CosmoA  United States
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Default el dipole

L shaped dipole sub with a pair of 10 inch Peerless polyprops. Damped MDF panels expoxied to paving stone. I have replaced drivers with ETON 8-800 HEX. A dipole rolls off at 6 dB per octave until driver resonance so you get pretty good response at frequencies below the baffle cancelation frequency. A passive line level shelf filter is easy for lower f -3dB corner. EQed dipoles or a transmission line is the way to go for a sub. I like to use stiff 8" drivers with high cone break up frequencies. Something designed for 2 or 3 way rather than for subwoofer use.
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Old 1st September 2009, 07:27 PM   #2
Salas is offline Salas  Greece
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OK. Welcome to the forums. Members are familiar with dipole bass. What is the purpose of the thread? You want to relay construction info and EQ curve, maybe some measurements?
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Old 1st September 2009, 07:49 PM   #3
CosmoA is offline CosmoA  United States
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Default Kill it or move it

Kill it or move to appropriate existing thread. I have noticed some recent interest in L shaped dipoles but maybe it was on another forum. I could provide more information if shown a little more courtesy and some interest.
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Old 1st September 2009, 09:41 PM   #4
Salas is offline Salas  Greece
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I asked about the purpose because I did not make it out from the content of the post. Of course it is welcome. Please say more about it.
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Old 1st September 2009, 09:55 PM   #5
Rudolf is offline Rudolf  Germany
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Quote:
Originally Posted by CosmoA View Post
I have noticed some recent interest in L shaped dipoles but maybe it was on another forum.
Sure it was here: http://www.audiocircle.com/index.php?topic=70173.0

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I could provide more information if shown a little more courtesy and some interest.
Our interest in more information is as high as our lack of courtesy may appear to you.
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Old 3rd September 2009, 08:06 AM   #6
Telstar is offline Telstar  Italy
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Interesting... which is the response graph (without EQ)?
And how low will it play with proper equalization? I mean before it starts distorting.
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