In this video I will be measuring some different tweeters. Amongst them beryllium tweeters from China. You can find the link to the tweeters here:

https://www.ebay.co.uk/itm/3224553048...

Thanks Frank for the tweeters!
https://hepaking.com
[email protected]
+852 6588 8973

If you would like to, now you have to ability to support my passion directly on Patreon:
  / rawcat  

Alternatively, you can donate directly to my PayPal:
https://www.paypal.me/pixerix

More testing, more experiments, more fun!