The DS1390 contains dual, horizontally opposed speakers which produce uniform sound dispersion ideally suited for reverberant under floor cavities and shallow ceiling plenums. An optional mounting bridge is available for use in ceiling plenums where conventional sound masking speakers are not applicable (specify DS1390B).
Key Features
For use in floor cavities as shallow as 1-3/4 inch
Optional bridge mount for use in ceiling plenums
Internal 70 volt transformer
Performance-engineered dual drivers with tuned ports well suited for sound masking produce uniform 360-degree dispersion