The MSK-1 by SolidDrive is an economical hidden planar-source sound transducer designed for sound masking in drywall applications. Featuring a rugged aluminum enclosure with neodymium magnets, the MSK-1 uses technology similar to our patented SD1 transducers to transfer acoustic energy to the substrate. The result is extremely wide and even audio coverage and acoustical uniformity in the listening space. The MSK-1 must be installed using the SD1 mounting bracket sold separately. Different bracket widths are available to accommodate in-wall stud spacing.