Ultrasonic Non-directional Speaker

This is not directional speaker. using ultrasonic transducers, audible sound produced by non-linear air characteristics. So there is no limitation such as cone,  magnet,  damper, basic structure of traditional speaker. As for the sound, very good separation is carried out. You can hear the musical instruments such as a vocal, the piano clearly.In addition, there are no headaches to be caused when you hear a supersonic wave for a long time. It takes out only audible sound.




This speaker is based on this kit.
If you interested in this new speaker, please let me know your impression.
ja7tdo(at mark)zao.jp