Description
Small and Powerful
The Cambridge Qt E-P-B-25-4 Active Emitter is the latest and most advanced addition to the Cambridge family. This device offers exceptional sound masking, ensuring that paging and music signals are played back clearly and simultaneously. It delivers greater volume and a wider frequency range compared to previous direct field Emitter options, all in a compact, powerful speaker that is nearly invisible when installed in finished or open structure ceilings.
Uniform Direct Field Masking
Conventional sound masking systems rely on bulky loudspeakers resembling paint cans to bounce sound off the ceiling deck, which then diffuses the masking sound throughout a space. On the other hand, the Qt Active Emitter is a compact and stylish device that utilizes Cambridge Sound Management’s exclusive direct field Quiet Technology. This innovative technology ensures that the sound masking is evenly distributed directly into the workspace.
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, theyre 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 thats 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 useda true plug and play experience with preset sound masking curves designed specifically for each emitter type.
Conference Room Designer
Data Sheet
Features
- 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)
Specifications
| Frequency Response | 125 Hz – 10,000 Hz |
|---|---|
| Music/Paging Frequency Response | 115 Hz – 12,000 Hz (-10 dB) |
| Masking Min – Max SPL | 30 dBA to 60 dBA @ 1 meter |
| Music/Paging Max SPL | 74 dBA @ 1 meter |
| Nominal Impedance | 40,000 |
| Nominal Dispersion | 170 degrees conical / half space |
| Connections | RJ-45 |
| Channel Selection | Four Channel Auto Sequencing and Repeating |
| Selectable Attenuation | 0 dB, -1.5 dB, -3 dB, -4.5 dB |
| Cabling | Category UTP Cabling (8 conductor) |
| Included Accessories | Acoustic Ceiling Tile Mounting Ring |
| Loudspeaker Type | Active w/ Integral Amplifier |
| Maximum Power Consumption | 2 watts |
| Operating Voltage | 36 VDC |
| Enclosure | Front Vented |
| Color | Black |
| Certifications | UL 2043 |
| Driver Diameter | 1.25″ (31.75 mm) |
| Dimensions (H x Dia) | 3.5″ (88.9 mm) x 3.25″ (82.55 mm) |
| Net Weight | 0.41 lbs (6.5 oz) |
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