Cambridge Sound Qt® E-A-W-30-4 Standard Emitters, White, 4 pack, with 4 x 30 ft white plenum rated cables - 911.0895.900

Product Overview

The Cambridge Sound Qt E-A-W-30-4 (part number 911.0895.900) is a four-pack of Qt emitters in white, supplied with four 30-foot white plenum rated cables. Emitters are the ceiling loudspeakers of a Qt direct-field sound masking system, and this model uses active electronics to provide sound masking with clear reproduction of paging and music signals from a single source. It offers a wider frequency range and higher sound pressure level than previous direct-field emitters. The units are UL-listed, comply with UL 2043 for plenum installation, and remain discreet in finished or open-structure ceilings.

Product Description

The Qt emitter projects masking directly into the workspace using Cambridge Sound's direct-field Quiet Technology, instead of bouncing sound off the ceiling deck from bulky in-plenum loudspeakers. That direct path delivers a uniform masking field and clearer paging and music, because the driver faces the listener rather than playing through ceiling material. The ported enclosure extends masking response down to the 125 Hz octave band and paging/music response to 115 Hz, with a maximum paging/music output of 74 dBA at 1 meter and 17 dB more output than previous direct-field emitters. Four auto-sequencing uncorrelated audio channels reduce phasing and comb-filtering between adjacent emitters. Each emitter connects over RJ-45 category UTP cabling, draws a maximum of 2 watts at 36 VDC, and ships with an acoustic ceiling tile mounting ring and slip-ring mount. Rear DIP switches trim level in 1.5 dB steps down to -4.5 dB. The pack is compatible with Qt 300 and Qt 600 control modules and with the DynasoundPro network system (specify DS1320). Complete the system from the Cambridge Sound collection.

Key Features

• 30 ft White Plenum Rated Cables Included — four cables ship with the four white emitters for above-ceiling runs.
• Masking, Paging, and Music — a single ceiling emitter covers all three functions.
• Direct-Field Quiet Technology — distributes masking evenly into the workspace without plenum reflections.
• Active Electronics — integral amplifier delivers 17 dB more output than previous direct-field emitters.
• Extended Low-Frequency Response — ported enclosure reaches the 125 Hz octave band for masking and 115 Hz for paging and music.
• Four Uncorrelated Channels — auto-sequencing channel assignment reduces phasing and comb-filtering.
• UL 2043 Plenum Rated — UL-listed for installation in air handling spaces.
• Adjustable Attenuation — rear DIP switches reduce volume in 1.5 dB increments to -4.5 dB.
• Tile Mounting Ring Included — slip-ring mount installs in acoustical ceiling tile.
• Qt and DynasoundPro Compatible — works with Qt 300 and Qt 600 control modules; DynasoundPro network systems specify DS1320.

Typical Applications

• Open offices — uniform direct-field masking with paging across open floor plates.
• Call centers — reduces speech distraction between adjacent agent positions.
• Healthcare facilities — supports speech privacy in exam rooms and waiting areas.
• Law and financial offices — protects confidential client conversations.
• Conference rooms — masks speech transfer to and from adjacent spaces.

Technical Specifications

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

FAQ

What comes in the E-A-W-30-4 pack?
Four white Qt emitters, four 30-foot white plenum rated cables, and acoustic ceiling tile mounting rings with slip-ring mounts.

Do these emitters support paging and music?
Yes. The active electronics reproduce paging and background music clearly while masking, since the driver faces the listener.

Which control modules are compatible?
The Qt 300 and Qt 600 control modules; for DynasoundPro network systems, specify the DS1320 version.

Are the emitters and cables plenum rated?
Yes. The emitters are UL-listed and comply with UL 2043 for air handling spaces, and the included cables are plenum rated.