Hi, I'm new to this forum and to DML speakers. I read the first five pages and the last ten and have got some open questions also due to the fact that I don't understand every technical aspect in English, which is not my mothertongue. I'm not a hifi enthusiast. So it's not about building the best speakers.
Page 87 was helpful, as Unbiasedsound answered basic questions.
So I'm going to use two eps polysterene, 10mm thick and one 6 mm for a "bass" Panel. All powered by a fosi audio 2.1 amp.
My question is about how to hang them on the wall? In a wooden frame? Or using some wood construction, but 6 or 10mm don't seem to be much to use cotter pins. So I'm lost here and appreciate any uncomplicated solutions.
Thank you for any answer.
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My design will be similar to the Cambridge audio Aero speakers that use a conventional cone driver for the woofer and a BMR driver for the tweeter. Only difference is instead of the BMR driver I will be using DML panel.
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I am going to experiment with Shelly Katz "Layered Sound", technique of combining a conventional cone driver with a DML panel. I just placed an order for a pair of Visaton WS-17E 6.5" woofers.
The challenge is to get the correct configurations of a dml and conventional cone driver to blend together perfectly as Katz does not explain exactly how to do it.
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Originally posted by peterv View PostUsing a Dayton DAEX 25FHE -4 exciter speaker on Foamular XPS panel ( 1" x 2' x2' ) . To block the frequency below 100hz would i use a 100uf capacitor ?
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Originally posted by AEIOU View PostA single driver or single diaphragm, the rear wave is out of phase 180 degrees with the front wave
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DML's are in phase so they are Bipolar. Again if they were out of phase then dipole.
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I don't see how they are bipoles, unless there are two opposing drivers one on the front and one on the back. A single driver or single diaphragm, the rear wave is out of phase 180 degrees with the front wave. Equal front and back output has nothing to do with phase, it is phase that makes it a bipole or dipole. Either the back radiation is in phase or is out of phase. But whatever.
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The sound radiating from the front and back are almost equal making them bipolar. If they were more out of phase then dipole.
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Originally posted by peterv View PostUsing a Dayton DAEX 25FHE -4 exciter speaker on Foamular XPS panel ( 1" x 2' x2' ) . To block the frequency below 100hz would i use a 100uf capacitor ?
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Well, I haven't been following this thread at all, but I wouldn't call it a bipole, I'd say it's a dipole.
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Using a Dayton DAEX 25FHE -4 exciter speaker on Foamular XPS panel ( 1" x 2' x2' ) . To block the frequency below 100hz would i use a 100uf capacitor ?
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Originally posted by Unbiasedsound View Postone of my audiophile buddy ... he told me if you think that is expensive there are certain caps that can cost $100.00 and over per cap
https://www.hificollective.co.uk/cat...er-p-4514.html
And that's in great British pounds....
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Can anyone tell me what he did wrong with his DML panels?>Dayton Speaker Project - Part 2 - YouTube
Hint. DML's are Bipolar/omni open baffle type that radiate sound almost equally from the front and back (sides also depending on ones design). DML's should be placed at least one foot away from the back walls for optimal sound as this is part of the DML's signature (magic) sound.
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Here is one thing I have learned recently with capacitors while experimenting with my DML panels. Unless the capacitor is of high quality it actually degrades the sound especially with the electrolytic caps. I ordered 125uf electrolytic caps for my small desk top satellite panels and I immediately heard a degrade in sound quality. Dayton makes a 100uf cap but it cost 30 something bucks each which isnt worth it because my small panels cost less then then the price of a pair of Dayton 100uf caps. I thought that was expensive until I talked to one of my audiophile buddy who I havent talked to in ages and he told me if you think that is expensive there are certain caps that can cost $100.00 and over per cap. He uses clarity caps, I said I cant afford it. lol
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