I’m starting a new build for summer. I’m looking at the Wavecor TW030WA09 tweeter and the SBA SB29SDAC-C000-4 SB29SDAC-C000-4 / Fabric - Sbacoustics
Madisound and Solen both have the TW030WA10 on sale (Mad $28, Solen $53 CDN). Go with the WA10 unless you really need the extra 2 dB sensitivity of the WA09. Both are being phased out and replaced with the WA21/22 versions with Tetoron Graphene domes. Same motor and frames, just different dome material.
I am posting the blurb of the improvements. This is not a link to the okder tweeters, but notice from the manufacturer.
That said, these 10 are fantastic for $28. However, I do feel the replacement 22 is better, IMO.
BTW- I will have my 10 for sale at InDIYana.