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Old 26th December 2005, 07:58 PM   #11
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Franz,
Thank you for the fantastic suggestion. I thought that my next DIY would be a DAC but i am going to hold off and try the horn extensions. Your tool is ingenious.. simple and very effective. Have you tried to use a heat gun to soften the PVC?
Do you simpley sandwich the PVC between 2 sheets of 9mm ply and then guide the sheet over a stand that repressents the inner diameter and length of the horn?
And my double base relfex were heavily based on the design from the Fostex website. Just used a flared port to smoother lows.
Thanks
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Old 27th December 2005, 06:18 PM   #12
Franz G is offline Franz G  Switzerland
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Quote:
Have you tried to use a heat gun to soften the PVC?
Yes, first, I made my fronthorn experiments with a heat gun. But it is not easy to dissipate the heat well.

And another disadvantage: the heat is just applied from one side. The material is about 3mm thick and some kind of foam, so the other side will not get hot enough.

It is easier to use an oven. Maybe infrared from both sides could be an alternative.

Quote:
Do you simpley sandwich the PVC between 2 sheets of 9mm ply and then guide the sheet over a stand that repressents the inner diameter and length of the horn?
Thats exactly the recipe!

Franz, looking forward for your enthousiastic report about the incredible improvement of the sound
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Old 27th December 2005, 10:18 PM   #13
Puggie is offline Puggie  United Kingdom
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Funny how you post threads and forget about them, only to find some very nice replies. I'll very possibly get a pair of these now to play with as computer speakers or similar low output near field monitors.

thanks guys.
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Old 28th December 2005, 10:02 AM   #14
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Hmm. I wonder. Up to 10cm, but can possibly stretch that. I wonder what would happen with a pair of these attached to either some bamboo Tangbands or the new FE126E in a smaller BIB box design... will tuck that one away for future reference.
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