4.5mm, 5ply Bubinga + 1 inner ply Cordia (1 outer ply Cordia for CDKG/CDKR/CSTN, Indian Laurel for LNTI, or 1 outer ply and 1 inner ply Bosse for ESEB/EWSB) w/ 9mm Sound Focus Ring
Bubinga wood, which TAMA introduced to the market, has become increasingly popular as a drum shell material. Because of their ultra-high density, Bubinga shells provide rich, fat low end as well as deep, dark tones.
STAR Bubinga shells are crafted to be much thinner than their Starclassic counterparts. All the shells are 4.5mm thick, including the bass drums and snare drums. These thinner shells allow the Bubinga material to vibrate more freely, which greatly enhances resonance. All STAR Bubinga shells feature 9mm thick Sound Focus Rings (SFR), which provide clear projection and sustain for a distinct sound, as well as reinforcement.
Vibration produced by hitting a drum transfers to the shell through the contact point between the drumhead and the shell. Therefore, the shape of the bearing edges is one of the most important factors in a drum's sound.
STAR drums feature a bearing edge shape as shown in the diagram. Its peak is rounder than TAMA's traditional bearing edge. This rounded peak provides more contact between the drumhead and shell, allowing vibration to travel from the drumhead to the shell more efficiently. Also, the peak position of the edge is 3.5mm from the shell's outer surface, which further improves contact between the drumhead and drum