The most recognized material for making Ukulele is the rare hardwood species Koa (Hawaii koa) from Hawaii, called Hawaiian Acacia trees (see the upper right wood section), light brown, beautiful wood grain, high-grade flaming lines .
It has a mild sound like mahogany, but his high frequency is more prominent than mahogany. Koa is denser than Mahogany, so the tone is brighter and the low frequency is weaker. Due to the oiliness of the wood, the high frequency is slightly weakened. In summary, the Koa tone is more focused on the intermediate frequency, the high frequency is smooth and compress, and the low frequency is clear but weak. Compared to other woods, the fundamentaltone in the Koa tone is stronger, less dynamic and more compressible. When playing hard, the sound quality is sweet. The sound will only appear after the wood has been played for a few years. The color is slightly too bright, just like walnut has too much oil, use it as a guitar, the color is dark brown, and it is not painted to keep it special. However, the appearance after painting is also quite beautiful.
Hawaiian Acacia has been banned from cutting, and the real Hawaiian acacia wood is stored in the past, and the price becomes more expensive. Therefore, the luthiers aim at the Acacia wood in Taiwan and Southeast Asian countries, and the price is easy for people to accept. The sound is good or bad, it is really craft-oriented, Hawaii is expensive, or it is rare, so don't blindly believe in wood, good wood is very important, but craft is the key in the key!