I would try hanging panels from all sides, via mildly tensioned Bungee cords.. That would be similar to a typical speakers "Centering Spider". I would think that you would want the panel to be able to vibrate / move fairly freely.. rather than being braced too tightly. That said.. you want to make sure that the movement would be accurate, rather than being able to move in random chaotic angles. The challenge might be, in be in making each bungee, at relatively similar tension levels. Maybe even having tension adjusters (like a guitar). Interestingly enough... Guitar strings might be a good suspension option. The use of separate panels for Highs and Lows, might help to greatly reduce merging distortions. Use a crossover, and direct to each.. and see what happens. Ohh, and the speaker wires themselves.. should be suspended, so that they do not add additional downwards weight, on the panels. The type of material used for the panels... might help in Optimization, for the High and Low panels. Meaning.. a different material might make the highs sound better... and a different material might make the bass sound better. Possible use of Zig-Zag material.. might help trap and move more air, on the Woofer panels... which might boost performance? All of this said.. Im not really sold on this tech... as interesting as it may be.
John, The magic of a DML panel lies within the ''chaotic'' behavior - eliminating coherent and ''in-phase'' source of energy with more natural resonant exciter. More in common with a real-life musical instrument, rather than mathematically exact driver. Many have tried, so few succeeded. As for my experience, I have not achieved good results with this design, but in the midst of all experiments I have heard some uncanny real life experiences that keep me pinned to this design - a feeling of a great potential if done correctly. This is a completely different beast when comparing with ordinary pistonic - type speakers, another set of variables. From exciter placement, to damping, to panel material itself. And also the performance of the exciters themselves - how they couple with exciting surface. I am still in research phase, working hard to achieve the ''real-life'' ''position-independent'' ''airy'' sound that I have glimpsed in some of my tests.. It sound pretentious but it's something you have to hear to understand
I tried bigger and thicker panels, but the ringing was more noticable. Width/height is golden ratio, over-all size was half of the bigger panels I tried off camera. I'm still looking for right material, birch plywood might not be the best. Guys from forms tell that poplar plywood is much better than birch but haven't sourced it yet. Also found out that thinner panels sound better (less ringing) than thicker ones, that is why I machined it thinner
@@KarlisZalitis понял тебя, спасибо. Совсем недавно кстати вышло видео одного из современных изобретателей на тему "соотношения сторон и влиянии на генерацию энергии" th-cam.com/video/iv1ZBp7G5gE/w-d-xo.html если коротко, то 4:3 длинна к высоте в нашем случае возможно даст ещё более интересный результат 👍
Good you're still posting. Cool project 👍
Yep! Still have a lot of ideas to try :)
Wow, that lowrider is still going!
Yep, still works fine :)
I would try hanging panels from all sides, via mildly tensioned Bungee cords.. That would be similar to a typical speakers "Centering Spider". I would think that you would want the panel to be able to vibrate / move fairly freely.. rather than being braced too tightly. That said.. you want to make sure that the movement would be accurate, rather than being able to move in random chaotic angles.
The challenge might be, in be in making each bungee, at relatively similar tension levels. Maybe even having tension adjusters (like a guitar). Interestingly enough... Guitar strings might be a good suspension option.
The use of separate panels for Highs and Lows, might help to greatly reduce merging distortions. Use a crossover, and direct to each.. and see what happens.
Ohh, and the speaker wires themselves.. should be suspended, so that they do not add additional downwards weight, on the panels.
The type of material used for the panels... might help in Optimization, for the High and Low panels. Meaning.. a different material might make the highs sound better... and a different material might make the bass sound better.
Possible use of Zig-Zag material.. might help trap and move more air, on the Woofer panels... which might boost performance?
All of this said.. Im not really sold on this tech... as interesting as it may be.
John,
The magic of a DML panel lies within the ''chaotic'' behavior - eliminating coherent and ''in-phase'' source of energy with more natural resonant exciter. More in common with a real-life musical instrument, rather than mathematically exact driver. Many have tried, so few succeeded.
As for my experience, I have not achieved good results with this design, but in the midst of all experiments I have heard some uncanny real life experiences that keep me pinned to this design - a feeling of a great potential if done correctly.
This is a completely different beast when comparing with ordinary pistonic - type speakers, another set of variables. From exciter placement, to damping, to panel material itself. And also the performance of the exciters themselves - how they couple with exciting surface. I am still in research phase, working hard to achieve the ''real-life'' ''position-independent'' ''airy'' sound that I have glimpsed in some of my tests.. It sound pretentious but it's something you have to hear to understand
I don't know if using a 30W class A amplifier would be okay?
Power rating depends on the exciter you are using but I think it would be ok
Выглядит интересно, гармонично👍. А почему именно такой вид и размер? Это связано с резонансом по частоте 432Гц возможно?
I tried bigger and thicker panels, but the ringing was more noticable. Width/height is golden ratio, over-all size was half of the bigger panels I tried off camera. I'm still looking for right material, birch plywood might not be the best. Guys from forms tell that poplar plywood is much better than birch but haven't sourced it yet. Also found out that thinner panels sound better (less ringing) than thicker ones, that is why I machined it thinner
@@KarlisZalitis понял тебя, спасибо. Совсем недавно кстати вышло видео одного из современных изобретателей на тему "соотношения сторон и влиянии на генерацию энергии" th-cam.com/video/iv1ZBp7G5gE/w-d-xo.html если коротко, то 4:3 длинна к высоте в нашем случае возможно даст ещё более интересный результат 👍
Thanks for the info, I will check it out :)