A DIY Ribbon Speaker of a different Kind

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#1,483
WrineX said:
because you are ?
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Yep. It's currently a weekend project which I'm keeping under wraps as I'm not sure what I want to do with it. However finally I'm getting accurate results. For example, the question about if the cheeks are flatter, does it produce a lower SPL. I can answer yes, however it manipulates lower frequencies. Where you would expect, for example, 50hz to be omni directions on a polar plot, a rubanoide will have a void at 0degs.
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#1,484
Oh im sorry i kind of made it less under wraps.. i hope you dont mind sorry 🙁

it also will tell you that the dip at 16khz +_ would be less with more flat *** cheeks. and yes the low end it likes it to be less flat more round... since it wont be moving as a cone/rigid paper if flat. breakup etc. rubas are fun but not ideal if you ask me 🙁 and having 2 coils spaced appart in the direction of listening area is not ideal either 🙁 then again its a driver that can cover a quite broad range. if done well🙂
 
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#1,487
Very interesting thread. I would be interested in making a woofer. 40Hz to 1Khz would be ideal. Obviously the big issue seems to be distortion, but if I don't need very high frequency extension, I should be able to choose different material.

I know WrineX used foam board and managed to get decent low end performance. I am thinking about using prepreg carbon fiber since it should be relatively stiff and I don't need to worry about using too much epoxy. It should also be pretty good at keeping the coil in the gap.

Thoughts?
 
#1,488
it think for real lows, one mmight need to make either something completely new, or use just a woofer. they are pretty good at the task 40-1khz 🙂
the ones i made had a huge downside max spl 🙁 they cant play near any woofers spl even a 5 inch one 🙁
 
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