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

Product Overview

The Cambridge Sound E-A-W-16-4 is a four-pack of white Qt Active Emitters with four 16-foot white plenum-rated cables, part number 911.0893.900. Each single-source emitter delivers sound masking while reproducing clear paging and music signals, with a wider frequency range and higher SPL than previous direct-field emitters. The compact housing is discreet in both finished and open-structure ceilings.

Product Description

The Qt Active Emitter uses direct-field Quiet Technology to project consistent masking into the workspace without bulky reverberant loudspeakers. Because pages and music are emitted directly toward listeners rather than through ceiling material, intelligibility and audio quality improve. Masking frequency response covers 125 Hz to 10,000 Hz, with music and paging extending 115 Hz to 12,000 Hz (-10 dB). Masking levels adjust between 30 and 60 dBA at 1 meter, and music/paging output peaks at 74 dBA. Four uncorrelated auto-sequencing channels suppress phasing and comb-filtering. The emitters run on the same Qt 300 and Qt 600 control modules and category UTP cabling that the QtPro platform is built on, with preset masking curves for plug-and-play calibration. Each active emitter draws a maximum of 2 watts at 36 VDC and carries UL 2043 certification for plenum installation. Find controllers and cabling in the Cambridge Sound collection at Creation Networks.

Key Features

• 16 ft Plenum Cables Included — four white plenum-rated cables ship in the box.
• Masking, Paging, and Music — complete single-source audio solution for office environments.
• Extended Frequency Range — 125 Hz–10 kHz masking; 115 Hz–12 kHz (-10 dB) music/paging response.
• 17 dB Higher Output — louder than previous direct-field emitters, 74 dBA max at 1 meter.
• Four Uncorrelated Channels — auto-sequencing reduces phasing and comb-filtering.
• Low Power Draw — 2 W maximum at 36 VDC.
• UL 2043 Certified — plenum-rated, UL-listed front-vented enclosure.
• Selectable Attenuation — DIP switches step output 0 / -1.5 / -3 / -4.5 dB for zone balancing.
• QtPro Infrastructure — compatible with Qt 300 and Qt 600 control modules over RJ-45.

Typical Applications

The E-A-W-16-4 is suited to open-plan offices, conference rooms, healthcare facilities protecting patient conversations, banks, and law offices. The white finish blends with standard acoustical ceiling tile, and the combined masking/paging/music capability lets one overhead system replace three.

Technical Specifications

Specifications sourced from Cambridge Sound vendor data. Unlisted values are omitted rather than estimated.

Frequently Asked Questions

What comes in the E-A-W-16-4 pack?

Four white Qt Active Emitters, four 16 ft white plenum-rated cables, and acoustic ceiling tile mounting rings.

Does this emitter handle paging and music as well as masking?

Yes. It is a single-source emitter that reproduces masking with simultaneous paging and music, reaching 74 dBA at 1 meter.

Which controllers does it work with?

The Cambridge Sound Qt 300 and Qt 600 control modules, using the standard QtPro category UTP cabling infrastructure with preset masking curves.

Is it rated for plenum spaces?

Yes. The emitter is plenum-rated, UL-listed, and complies with UL 2043; the included cables are also plenum-rated.