Yamaha JA6681B Compression Driver Measurements

[Joseph Crowe]

I'd like to share my latest blog post. The Yamaha JA6681B measures well. It would be suitable in a high sensitivity 2-way. The diaphragm uses a unique surround comprising 15 little copper beryllium arms that flex. This results in a very low 300Hz FS. Impressive!

Yamaha JA6681B Compression Driver – Joseph Crowe

 

[Rewind]

Love it. As a protection cap when crossing at 270Hz, what would you recommend? 53uF?
Btw, we made a long thread about this driver on this forum. But not as detailed as this.