A system and method to obtain a nickname for records, particularly records having number fields. An open connecting rod section is separated from an internal, tubular passageway by a closed wall. The mechanical and electrical configurations act in synergy to shield the sensor and lead cable from external electrical fields and suppress movement artifact. The structure may also be easily separated from the bag and used for other purposes. A second support bracket supports the second midrange driver and the second tweeter along a second side of the closed top wall adjacent the third sidewall of the speaker housing.