AtlasIED 4-Zone High-Definition Acoustical System Z4-B
Quiet the room. Keep the music.
The Z4-B is a 4-zone system that handles sound masking, background music and paging from one rack-mount unit, so open offices get speech privacy without separate gear.

Private talk shouldn't carry across the floor.
In open offices, healthcare and financial spaces, overheard conversation is a real problem. Masking, music and paging usually mean separate systems to install and manage.
Masking, music and paging in one
The Z4-B covers speech privacy, background audio and voice paging across four zones.
Built-in noise generators
Integrated analog noise generators and preconfigured sound masking presets help you set up speech privacy.

Zones supported
Each zone has its own level controls for mic/line aux and Bluetooth.
Music and paging inputs
Use Bluetooth streaming or the 3.5mm stereo summed auxiliary input for BGM, plus a selectable mic/line input for paging or recorded messaging.
VOX priority muting
VOX priority muting handles paging and background audio, so announcements take priority.
Control per zone
Independent level controls per zone for Mic/Line Aux and Bluetooth, and all inputs have EQ, Hi and Lo Pass Filters and Limit.
Everything you need to know.
| Brand | AtlasIED |
| Model | 4-Zone |
| Product Type | High Definition Acoustical System |
| Number of Zones Supported | 4 |
| Output | 30-Watts 70.7V/100V |
| Frequency Band Type | Octave Band |
| Form Factor | Rack Mount, Surface Mount, Wall Mount |
| Power Source | DC |
| NDAA Compliant | Yes |
| TAA Compliant | No |
| Shipping Weight | 13 lb |
AtlasIED 4-Zone High-Definition Acoustical System Z4-B
The AtlasIED Z4-B is a sound masking, paging and music system: 4-Zone High-Definition Acoustical System. It is built for audio and AV integrators, sound contractors and facility teams designing or servicing commercial paging, music and voice systems.
Key Features
- 4-Zones, 30-Watts 70.7V/100V Output
- Integrated Analog Noise Generators
- Selectable Mic/Line Input for Paging or Recorded Messaging
- 3.5mm Stereo Summed Auxiliary Input for BGM
- Bluetooth® Streaming for Background Music
- Enhanced Privacy Mode with Optional Wired or Wireless Sign
- Preconfigured Sound Masking System Presets
- VOX Priority Muting for Paging and Background Audio
- Independent Level Controls per Zone for Mic/Line Aux and Bluetooth®
- All Inputs have EQ, Hi and Lo Pass Filters and Limit
Specifications
- Brand: AtlasIED
- Model: Z4-B
- Product Series: Z
- Product Type: High Definition Acoustical System
- Frequency Band Type: Octave Band
- Number of Zones Supported: 4
- Form Factor: Rack Mount, Surface Mount, Wall Mount
- Power Source: DC
- Shipping weight: 13 lb
Typical Uses
- Sound masking and speech privacy in open offices, healthcare and financial spaces
- Background music and paging over the same 70V system where supported
Please confirm that the Z4-B matches your system's line voltage (25V/70V/100V), wattage taps, mounting and finish requirements before ordering, and follow the manufacturer's installation instructions and local codes. Contact us with the models of your existing equipment if you need help checking compatibility.
Need help with compatibility?
Looking for a manufacturer part number, compatible replacement, or quantity order? Contact Raztechs for sourcing and quote support.

AtlasIED 4-Zone, ready to order.
- Product Type: High Definition Acoustical System
- Number of Zones Supported: 4
- Output: 30-Watts 70.7V/100V
- Frequency Band Type: Octave Band
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