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Compact Sound Masking System

25-Volt Sound Masking Loudspeaker

The SMS-25V is a 25-volt system loudspeaker designed to generate the optimum masking sound for a variety of ceiling conditions. This sound masking machine is equipped with a 5″ driver installed in a sealed enclosure.

The SMS-25V is typically installed in the plenum space, suspended between the acoustic tiles and the deck. In the case of an open ceiling, it can be attached to the structure. The SMS-25V white noise speaker can be oriented in any direction. A RoHS compliant version is available.

Product Testing & Information


  • Power: 10 watts
  • Line Voltage: 25V
  • Sensitivity: 91 dB
  • Material: ABS
  • Frequency Response: 100-8,000 Hz
  • Connectors: Screw Terminals
  • Color: Black or White
  • Driver: 5.5″ Full Range
  • Diameter: 8.75″ (222 mm)
  • Height: 5.3″ (125 mm)
  • Weight: 4 lbs (1.8 kg)
  • Shipping Weight: 4.4 lbs (2 kg)
25V Speaker Dimensions
SMS-25V Sound Masking LoudspeakerSpeaker
SMS-25V Sound Masking LoudspeakerSpeaker
25V Speaker Frequency Response