Cambridge Sound Qt® E-A-W-16-4 Standard Emitters, White, 4 pack, with 4 x 16 ft white plenum rated cables - 911.0893.900 (2024)

Cambridge Sound Qt® E-A-W-16-4 Standard Emitters, White, 4 pack, with 4 x 16 ft white plenum rated cables - 911.0893.900 (1)

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Cambridge Sound Qt® E-A-W-16-4 Standard Emitters, White, 4 pack, with 4 x 16 ft white plenum rated cables - 911.0893.900 (3)

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  • Overview
  • Features
  • Specifications
  • Shipping & Returns
  • Reviews


Small and Powerful

TheCambridge E-A-W-16-4 Qt® Active Emitter is designed to provide sound masking while maintaining clear reproduction of paging and music signals from a single source. This speaker offers a wider frequency range and higher sound pressure level than previous direct field emitters. It is both powerful and discreet, making it an ideal choice for use in finished or open structure ceilings.

Uniform Direct Field Masking

The Qt Active Emitter is a compact device that uses direct field Quiet Technology to provide consistent sound masking in the workplace, without bulky loudspeakers.

Clear, Articulate Paging and Background Music

Another benefit of direct field technology is improved audio clarity for paging and music. Because pages are being emitted directly into the environment, they’re clearer and easier for listeners to understand. Music sounds better too because the speaker is facing the listener instead of being played through a ceiling material. The Qt Active Emitter is the only sound masking loudspeaker that’s a complete masking, paging, and music solution for office environments.

The Favorite Installation Choice of Integrators

The Qt Active Emitter uses the same control modules and cabling infrastructure that made QtPro™ the number one sound masking system choice of companies worldwide as well as the favorite installation choice of integrators. As a result, QtPro remains the easiest sound masking system to install and calibrate, regardless of whether the Active Emitter or original Emitter is used—a true plug and play experience with preset sound masking curves designed specifically for each emitter type.

Conference Room Designer

Data Sheet


  • Includes 4 x 16 ftwhite plenum rated cables
    Active electronics power the speaker
  • Ported enclosure design allows lower frequency extension down to 125 Hz octave band for sound masking and 115 Hz for paging and music
  • 17 dB louder than previous direct field emitter offerings
  • Plenum-rated, UL-listed, and complies with UL 2043
  • Delivers four uncorrelated audio channels to reduce phasing/comb-filtering
  • Comes standard with a slip-ring mount for acoustical tile mounting
  • Rear DIP switches reduce volume by 4.5 dB in 1.5 dB increments, if needed
  • Compatible with the Qt 300 and Qt 600control modules
  • Control via web-based management from any device
  • Compatible with DynasoundPro Network System (Specify DS1320)


Frequency Response125 Hz - 10,000 Hz
Music/Paging Frequency Response115 Hz - 12,000 Hz (-10 dB)
Masking Min - Max SPL30 dBA to 60 dBA @ 1 meter
Music/Paging Max SPL74 dBA @ 1 meter
Nominal Impedance40,000 Ω
Nominal Dispersion170 degrees conical / half space
Channel SelectionFour Channel Auto Sequencing and Repeating
Selectable Attenuation0 dB, -1.5 dB, -3 dB, -4.5 dB
CablingCategory UTP Cabling (8 conductor)
Included AccessoriesAcoustic Ceiling Tile Mounting Ring
Loudspeaker TypeActive w/ Integral Amplifier
Maximum Power Consumption2 watts
Operating Voltage36 VDC
EnclosureFront Vented
CertificationsUL 2043
Driver Diameter1.25" (31.75 mm)
Dimensions (H x Dia)3.5" (88.9 mm) x 3.25" (82.55 mm)
Net Weight0.41 lbs (6.5 oz)

Shipping & Returns

At Creartion Networks, we do everything we can to create an excellent customer experience. This includesfast shippingandeasy returns.

  • Most in-stock orders placed Monday-Friday before 1PM PST ship the same day. Orders placed after 1PM will ship the next day of business. General restrictions apply; please see our full shipping policyhere.
  • We offer a30-day return policy from the delivery date on many products.Product restrictions apply. Restocking fees for the return of open-box items. Please see our full return policyherefor more information.


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Cambridge Sound Qt® E-A-W-16-4 Standard Emitters, White, 4 pack, with 4 x 16 ft white plenum rated cables - 911.0893.900 (2024)
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