Atlas Sound Z4-B 4-Zone High Definition Acoustical System

Product Overview

The Atlas Sound Z4-B is a 4-zone, 120-watt sound masking system built for offices, conference rooms, and other commercial spaces where speech privacy, paging, and background music must run from a single chassis. It generates up to four zones of 70.7V/100V output and covers as much as 14,000 square feet of indirect-field sound masking. For commercial AV integrators, it eliminates the need to combine separate masking generators, mixers, and amplifiers, simplifying both the bill of materials and the commissioning schedule. The Z4-B installs in-wall, on-wall, or in a rack, fitting the architecture of nearly any commercial sound masking installation.

Product Description

The Z4-B is part of the AtlasIED Z Series, an all-in-one speech privacy platform that pairs integrated analog noise generators with paging and background music distribution. Each of the four 30-watt zones operates at 70.7V or 100V, and the system can be configured for four-zone indirect-field masking, two zones of direct-field masking, or a mix of masking and BGM zones to match the floor plan. Inputs include a selectable mic/line input for paging or recorded messaging, a 3.5mm summed stereo auxiliary input, and Bluetooth streaming for background music, with VOX priority muting so pages always cut through program audio. Every input carries EQ, high- and low-pass filters, and limiting, and each masking zone offers independent EQ, level adjustment, and commissioning ramping for precise office sound masking tuning.

Deployment is straightforward for system designers and installers: all hardware and wiring sits behind a secure front panel, so the unit can be centrally located without a dedicated cabinet. The front-panel display handles system programming and end-user control after handoff, and the unit ships preconfigured with masking filter presets developed by sound masking expert Dr. Bob Chanaud, with custom presets loadable via the front USB port from the included PC project design software. For conference room speech privacy, the Speech Privacy Enhancement mode adds acoustical energy to the surrounding area during sensitive meetings, triggered by a hardwired switch, an iOS or Android app, or an optional wireless desktop or wall switch — these Chanaud masking filters have been deployed in military and government facilities worldwide. Pair the Z4-B with ceiling or surface speakers from our AtlasIED collection to complete a commercial audio deployment.

Key Features

• 4-Zone 70.7V/100V Output — Four independent 30-watt zones let integrators address separate areas of an office or facility from one unit.
• Integrated Analog Noise Generators — Built-in generators produce the masking signal without external sources, reducing rack space and wiring.
• Speech Privacy Enhancement Mode — On-demand privacy boost for conference rooms, activated by switch, mobile app, or optional wireless control.
• Chanaud Masking Filter Presets — Field-proven, preconfigured masking curves speed commissioning and match the installation type without manual tuning.
• Paging and BGM Inputs — Selectable mic/line input, 3.5mm auxiliary input, and Bluetooth streaming support announcements and background music alongside masking.
• VOX Priority Muting — Pages automatically duck background audio so announcements remain intelligible in every zone.
• Per-Zone DSP Control — Independent EQ, level, and commissioning ramping in each masking zone give designers precise control over coverage.
• Flexible Mounting — In-wall, surface, or rack mounting with all wiring secured behind the front panel for clean commercial installation.

Typical Applications

• Boardrooms
• Conference rooms
• Huddle rooms
• Government spaces
• Commercial meeting spaces
• Multi-purpose rooms
• Training rooms

Technical Specifications

Frequently Asked Questions

How much area can the Z4-B cover with sound masking?
In four-zone indirect-field configuration, the Z4-B covers up to 14,000 square feet. It can also run two zones of direct-field masking or mix masking and background music zones.

Does the Z4-B work with standard 70V commercial speakers?
Yes. Each of the four zones outputs 30 watts at 70.7V or 100V, so it drives standard distributed loudspeaker lines used in commercial audio installation.

Can the Z4-B handle paging and background music as well as masking?
Yes. It includes a selectable mic/line input for paging or recorded messages, a 3.5mm auxiliary input, and Bluetooth streaming, with VOX priority muting for announcements.

How is the system commissioned and adjusted?
Integrators can use the front-panel display, the included PC project design software with USB preset loading, and independent per-zone EQ, level, and ramping controls.

What warranty applies to the Z4-B?
AtlasIED covers the Z4-B with a 36-month warranty from the date of purchase, and Creation Networks supports you through the ordering and fulfillment process.

Where can I find compatible AtlasIED products?
Browse the full AtlasIED collection at Creation Networks for speakers, amplifiers, and accessories that pair with the Z4-B.