Instantly recognizable on stage with its lighted VU meter, the ABM serie has become a standard for bassists looking for authentic bass sound, versatility, power and reliability. Whether in concert or in studio, many professional bassists rely on the ABM serie. Instantly recognizable on stage with its lighted VU meter, the ABM serie has become a standard for bassists looking for authentic bass sound, versatility, power and reliability. Whether in concert or in studio, many professional bassists rely on the ABM serie. Except TWELVE-600-UK :