Disclaimer: The information on this website is for education purposes only, and is not intended to replace the medical advice, diagnosis, or recommendations of your physician or healthcare provider. This site makes no claims that products, therapies, or services herein will cure disease. The views expressed on this website are those of our users. We may not share the same views.

What do I need for ultrasonic? How to use it?

You leave the plastic cap on to reduce the power. The impedance of the ultrasonic depends on the frequency. Piezo speakers are capacitive. The capacitance of the Spooky2 Central peizo speaker is 1500pF.

The generator can drive the speaker directly because it is protected against overcurrents.

We have tested the piezo being driven by the XM generator directly with no amplifier. The power is reduced but it still works OK.

For more details, please see this blog: 


Have more questions? Submit a request


Please sign in to leave a comment.