Check out the first six and a half minutes of this video from Acoustic Addicts where they talk about Acacia koa and its acoustic qualities as a tonewood. Very interesting and entertaining.
The rise of blackwood as a quality tonewood is largely due to the heritage of Koa and the Hawaiian music craze of the 1920’s.
As the supply of Koa timber from Hawaii continues to decline so the fortunes of blackwood as a quality tonewood continue to rise.
Cheers!
Tasmanian Blackwood Growers Cooperative 