Blackening Stainless Steel + Brass(Green)
This 9iNE uses brass for the back plate. The brass is colored “Brass Green” utilizing the traditional technique of Momentum Factory Orii.
The coloring using green rust has unevenness like peeling paint on the surface, and each piece has a different hue and texture.
The sound is similar to the WOOD version of the 9iNE, but the overall sound is a little harder, with a brighter high frequency range and a heavier low frequency range.