Biamp Cambridge E-P-W-4 Qt Active Emitter Pack
Deliver powerful, full-range sound masking, paging, and background music performance with the Cambridge E-P-W-4, a four-pack of white Qt Active Emitters designed for flexible installation and advanced acoustic coverage in professional environments.
The Cambridge E-P-W-4 Qt Active Emitter Pack delivers advanced, wide-dispersion sound masking and high-quality audio for paging and background music. Each pack includes four white Qt Active Emitters designed to provide superior performance, extended frequency response, and easy integration into commercial, healthcare, and enterprise environments.
Powered by onboard electronics, each emitter extends low-frequency output to 125 Hz for masking and 115 Hz for paging and music, achieving natural, full-range sound reproduction. With up to 17 dB higher SPL than standard direct field emitters, the E-P-W-4 supports consistent, intelligible coverage across larger or acoustically challenging spaces.
GENERAL
Depth: 3.5 inches (89mm)
Diameter: 3.25 inches (83mm)
Weight: 6.5 oz. (184g)
Finish: White
Enclosure: Front Vented
Included Accessories: Acoustic Ceiling Tile Mounting Ring
ENVIRONMENTAL
Operating Environment: Indoor
POWER
Power: Power Consumption Max: 2 W
Power Consumption: Max: 2 W
AMPLIFIER
Channels:
• Channel Selection: 4 Auto-Sequencing and Repeating Channels
• Selectable Attenuation: 0 dB, -1.5 dB, -3 dB, -4.5 dB
LOUDSPEAKER
Loudspeaker Type: Active with integrated amplifier
Dispersion: Nominal: 170° conical / half space
Drivers: Driver Diameter: 1.25 inch (32mm)
SOUND MASKING
Sound Masking System:
• Sound Masking: 100 Hz to 6.8 kHz
• Cabling: Category UTP Cabling (8 conductors)
• I/O Connectors: 2 RJ-45 connectors
AUDIO
Impedance: Nominal: 40 kΩ
Frequency Response:
• Sound Masking: 100 Hz to 6.8 kHz
• Music/Paging (-10dB)2: 105 Hz to 12 kHz
SPL:
• Minimum Masking SPL (@ 1m): 30dBA
• Maximum Masking SPL (@ 1m): 60dBA
• Maximum Music/Paging SPL (@ 1m): 74dBA
COMPLIANCE
Certifications:
• ETL listed (USA and Canada)
• Evaluated to the requirements of UL 2043 and is suitable for use in air handling spaces
• Met Works with WELL licensing criteria for sound masking
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