AtlasIED M2000-LP Dual 2x4 Sound Masking Speaker SystemThe M2000 LP sound masking speaker assembly is designed to accurately reproduce the required spectrum of masking signal into small plenum spaces. The innovative square enclosure ensures accurate sound masking frequency response. Specially designed 2" x 4" cone speakers (2) are included in the package. A high efficiency 70. 7V internal transformer is coupled to an external tap selector switch for easy system tuning. To meet most any local code