The C-Mark  PB210N series created a modern standard for bass guitar sound reproduction. Now the same painstaking attention to detail has been applied to C-Mark ‘s line of professional neodymium speaker enclosures—the PB series. These lightweight bass cabs are the result of a painstaking process in which every component of the PB Series was evaluated and, whenever possible, a lightweight high-performance component was selected for use in our light bass speaker enclosures.