From DW:
Contemporary Classic ™ Drums Born as a project between John Good and studio legend Russ Kunkel, Contemporary Classic ™ shells are an offshoot of the popular DW Classics line of custom drums. Designed to capture the vintage drum sounds of yesteryear, and so much more, these shells feature a plied poplar core with an African mahogany inner and outer ply. The one inch re-rings help focus the sound.