The M2MAC range offers single and double, outward and inward opening doorsets with a variety of acoustic ratings. Bradbury's M2MAC doors were successfully tested at Lorient's state-of-the-art acoustic transmission suite to meet the requirements of BS EN ISO 10140, the BSI standard for laboratory measurement of sound insulation of building elements.

M2M+AC doors have an acoustic rating between Rw28 and Rw40, depending on specification, with an optional CERTIFIRE fire rating of FD240.

Combining solutions for security and acoustic requirements, M2M2AC doorsets are LPCB accredited to LPS 1175 SR2, with acoustic ratings of Rw40 on single doors, and Rw42 on double doors.