Koa (Acacia koa), ib hom tawv ntoo nyuaj ntawm Hawaii, hu ua Hawaiian Acacia ntoo. Nws yog lub teeb xim av, nrog ntoo zoo nkauj thiab qib high-theem flaming kab.
Nws muaj suab me ntsis zoo li mahogany, tab sis nws lub siab muaj ntau dua li phav phav. Koa yog denser dua Mahogany, yog li cov laus muaj zog thiab tsawg zaus yog weaker. Vim lub roj ntawm cov ntoo, lub siab yog me ntsis tsis muaj zog. Hauv kev xaus, tus Koa laus yog teem rau ntau zaus, qhov loj yog du thiab compress, thiab tsawg zaus muaj tseeb tab sis tsis muaj zog. Piv rau lwm cov ntoo, lub suab nrov hauv Koa suab zoo dua, tsis muaj zog thiab ntau compressible. Thaum ua si nyuaj, lub suab zoo yog qab zib. Lub suab yuav tsuas tshwm sim tom qab ntoo tau raug ntaus rau ob peb xyoos. Cov xim no kuj nce mentsis thiab, ib yam li walnut muaj roj ntau heev, siv nws ua ib guitar, xim yog xim av dub, thiab nws tsis pleev xim rau nws tshwj xeeb. Txawm li cas los, qhov zoo li tom qab nrag yog tseem zoo nkauj heev.