The Optimal Audio Zone 4 is a 4-zone audio controller for commercial installations, providing source routing, mixing and processing for up to four independent zones. It accepts four line-level inputs, two microphone inputs and two HDMI inputs, all configured through an intuitive WebApp interface. The Zone 4 requires external amplification — pair it with Optimal Audio SmartAmps or third-party amplifiers to drive your speakers.
Zones
4
Independent
Line Inputs
4
Stereo
Mic Inputs
2
Microphone
HDMI Inputs
2
Audio extraction
System Design
The Zone 4 is a controller only — it does not contain an internal amplifier. Pair it with Optimal Audio SmartAmps or third-party amplifiers. For a combined controller and amplifier in one unit, see the Zone 4P.
Inputs
Available source connections
4x Line
2x Mic
2x HDMI
2x Mic
2x HDMI
Ecosystem
Works with
ZonePad 1 / 4 / 8
SmartAmps
Talk 8
SmartAmps
Talk 8
Features
✓
4 independent audio zones with per-zone source selection and volume
4 independent audio zones with per-zone source selection and volume
✓
WebApp-based configuration — no proprietary software required
WebApp-based configuration — no proprietary software required
✓
4 line, 2 mic and 2 HDMI inputs for versatile source connectivity
4 line, 2 mic and 2 HDMI inputs for versatile source connectivity
✓
Compatible with ZonePad wall controllers for local user control
Compatible with ZonePad wall controllers for local user control
✓
Works with SmartAmps for a complete Optimal Audio system
Works with SmartAmps for a complete Optimal Audio system
✓
HDMI audio extraction for TV and media player sources
HDMI audio extraction for TV and media player sources
✓
UK power supply included (ZONE4UK variant)
UK power supply included (ZONE4UK variant)
Specifications
| Model | Zone 4 |
| SKU | ZONE4UK |
| Zones | 4 |
| Line Inputs | 4 |
| Mic Inputs | 2 |
| HDMI Inputs | 2 |
| Internal Amplifier | No |
| Configuration | WebApp |
