AtlasIED Z4-B 4-Zone Sound Masking and Paging Processor

The AtlasIED Z4-B is engineered for commercial integrators who need a single-rack solution covering sound masking, background music distribution, and paging across multi-zone facilities. With four independent 70.7V/100V outputs and coverage up to 14,000 square feet in indirect field configuration, it scales from small offices to mid-sized corporate or government campuses without requiring additional amplification hardware.

Flexible deployment modes make the Z4-B practical across a wide range of installation types: four-zone indirect field masking, two-zone direct field masking, or a hybrid combining masking and BGM zones. Preconfigured masking filter presets developed by acoustical engineer Dr. Bob Chanaud allow technicians to match the processor to the room type without custom DSP work, while PC-based project design software and front-panel USB access support advanced commissioning. In-wall, surface, and rack mounting options — with all wiring secured behind the front panel — reduce cabinet requirements and simplify centralized installations.

For secure environments including government, military, and executive conference rooms, the Speech Privacy Enhancement mode applies additional acoustical energy to raise privacy levels during meetings. Activation is available via hardwired switch, iOS/Android app, or optional wireless switch, and an optional visual sign can notify room occupants when the mode is active. AtlasIED's four-decade history developing and commissioning sound masking systems with proprietary Chanaud filters backs the Z4-B's suitability for installations where speech privacy compliance is a requirement.