How to make subwoofer headphones yourself 

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Used:
◘Headphones
◘4Ω 20W speakers
I have a patent for the invention ☑
I have a patent for the design ☑
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Music/Outro:
➜ MachinimaSound.com - Dance of the Pixies
Download: machinimasound.com/music/danc...
➜Noduz - Trinity
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NCS channel: goo.gl/7hXR4s
☠ ATTENTION ☠ be careful and do not try this at home, the author is not responsible for your actions, this video is for entertainment purposes and not instructional or an incitement to action!
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