Lowell SM820A Sound Masking Loudspeaker

The SM820A is an above ceiling 50W sound masking speaker with 8" coaxial driver, 70V transformer, grille and backbox with wire hangers, S-hooks and chain. Black finish.

The SM820A Series of UL Listed sound masking speakers ship completely assembled and ready for installation. Each assembly includes an 8" coaxial driver, wired transformer, steel enclosure and grille (black or white) along with the choice of hanger/chain or bridge rail mounting hardware.

In general, the purpose of a sound-masking system is to provide for greater conversational privacy and productivity in open office environments by adding ambient noise and shaping the signal to mask speech. The signal is fed from a generator with an amplifier to sound masking speakers that are typically positioned above-finished lay-in tile ceilings in plenum space; however, speaker assemblies with a white finish are sometimes specified for use in open architecture truss type ceilings.

• Driver:  8 in. 50W coaxial driver (20 oz. magnet)
• Transformer:  70V (0.25, 0.5, 1, 2, 4W). Selector switch includes "OFF" position
• Enclosure:  760 cu in. volume (11.625 in. square x 5.625 in. deep), fiberglass lining, externally accessible input leads, SG handibox cover with knockouts, Romex connector for installations without conduit. Black.
• Grille:  Steel grille with round perforation pattern. Black.
• Mounting Aids:  Removable wire hangers, S-hooks, and 4 ft. chain. Does not include rigging hardware.

Spec Sheet

Installation Instructions