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SMS-SURF4 Surface-Mount Direct-Field Masking & Paging Speaker

The SMS-SURF4 speaker flush-mounts into ceiling tiles or drywall and fires the masking sound straight down into the room, which makes it the right option precisely where an up-firing speaker can't do its best job: tight or obstructed plenums, and dense drywall or gypsum-board ceilings where reflected sound would arrive too weak after passing back down through the gypsum. It runs on 25 V or 70 V lines and daisy-chains across large floors, doubling as a clear paging and background-music speaker at low cost per point.

  • Achieve effective sound masking along with paging and ambient music playback in office spaces with drywall ceilings
  • Better sounding alternative to Biamp's QT emitters for sound masking applications requiring a direct field approach
  • Runs on 25 V or 70 V lines and can be daisy-chained for large cost-effective sound masking installations
  • Built-in rotary switch power tap selector makes it easy to adjust the output level of individual speakers
  • Chicago CCEA-compliant version available
  • UL 2043 plenum-rated
Specifications
Max power10 W
Sensitivity87 dB
Enclosure materialSteel
Frequency response100 Hz to 10 kHz
ConnectorsScrew terminal block
Output power selection4 W, 2 W, 1 W, ½ W
Driver9.5 cm (4") full range
CertificationUL 62368 / UL 2043
Chicago CCEA approvedYes, CCEA version available
ColorWhite (RAL 9016) or Black (RAL 9011)
Weight1.2 kg (2.6 lb)
Shipping weight1.6 kg (3.5 lb)
DimensionsØ 9.7 cm body / Ø 13.5 cm ceiling flange × 11.7 cm deep into plenum (Ø 3 13/16 / 5 5/16 × 4 5/8")
SMS-SURF4 dimensions drawing
Box dimensions17 × 17 × 18 cm (6¾ × 6¾ × 7")

Resources

Spec sheet User manual 3D models
Surf4 flushmount down-firing sound masking speaker
Surf4 flushmount down-firing sound masking speaker
Surf4 flushmount down-firing sound masking speaker
Surf4 flushmount down-firing sound masking speaker

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Specify & Install Sound Masking With Confidence

From system design guidelines to installation manuals and technical drawings, our documentation gives specifiers, integrators, and facility teams everything they need to deploy Soft dB sound masking correctly.

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Multizone Sound Masking Controllers

The brains of your sound masking system. Controllers generate the broadband masking signal and coordinate it across speaker groups, delivering the right level to each office zone. They double as multi-input amplifiers for paging and ambient music.

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System Management Software

A building automation interface, but specially developed for easy sound masking system management. Design, commission, and run the system from one graphical view of every component and wire, laid over the office plan. Adjusting volume and EQ for any masking or paging zone takes seconds.

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Adaptive Sound Masking Beats Static, Timer-Based Systems

Traditional systems raise and lower masking on a fixed timer, guessing at how busy a space will be. Adaptive sound masking measures the real ambient noise and adjusts continuously, so speech privacy and comfort stay consistent whether the floor is packed or empty, with no one touching a dial.

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