Lawo Crystal Series Audio Console

Driver Maturity

Production

Recommended for normal production use.

Caution

Compatibility Note: This information is a general guide and may be incomplete, may not match a specific project implementation, and is subject to change as supported products and versions evolve. Confirm the exact implementation and requirements for each project with Riedel and the relevant equipment vendor, then validate the required functions end to end in the target environment before deployment.

Minimum hi Version: v2.5.0

Overview

The Lawo^® crystal^™ series integration uses Ember+ for Crosspoint routing and the parameters published by the console.

Network Requirements

Connection Model: Outbound from hi
Multicast / Unicast: Unicast only
Firewall: Allow outbound TCP from hi to the console on Port 9000 by default.
Callback: No inbound callback to hi is used.
Security: Keep the plaintext control connection on a trusted management network.

Standards Conformance

Standard	Conformance	Notes
Ember+ (Lawo)	Glow DTD parameter tree per Ember+ spec	Open community specification used as a de facto standard widely adopted

Operator Workflow

UI Surface in hi: Inventory, Parameter Control, and Control Panels
Layers Controlled: Audio, Control
Routing Semantics: hi exposes the Ember+ matrix and parameters published by the console.
Notes for Operators Familiar with the Vendor's Own Tooling: The exact controls available in hi are defined by the console's published Ember+ tree. Use Lawo tooling for DSP design and show-file configuration.

Connection Details

Property	Value
Protocol	Ember+
Transport	TCP
Default Port	9000
Authentication	No credentials are configured by this hi integration
Encryption in Transit	None - Ember+ uses plaintext TCP no TLS defined
Connection Model	Persistent TCP with subscription
Required License	hiBase
Traffic Flow	Outbound from hi

Required Configuration

Parameter	Description	Default
Host / IP Address	IP address of the crystal console	-
Port	Ember+ TCP Port	9000
Reinitialize Router	Operations button that disconnects the routing control connection and restarts initialization available at runtime	-

Device-Side Setup

Follow Lawo Crystal Series Audio Console Integration Configuration for the device-side and hi-side configuration steps.

Supported Features

Feature	Access	Exposed Operation and Scope
Ember+ Crosspoint Routing	Read/write	Read routing state and set exposed Crosspoints.
Parameter Tree (GetDirectory)	Read-only	Discover the tree and read values exposed by the crystal Ember+ provider.
Parameter Values (Set)	Per-parameter access	Write only parameters the provider marks writable.
Parameter Subscriptions (Subscribe / Unsubscribe)	Read-only updates	Subscribe to and receive exposed value changes; unsubscribe removes the hi subscription.

Device Coverage

Tested With identifies devices that have been tested with hi. Device-specific configuration, firmware, and feature support can affect results.

Tested With

Lawo crystal

Known Limitations

Verify the available Ember+ tree and matrix behavior during commissioning.
Lawo supports up to five Ember+ providers on a crystal console. Each provider publishes only the elements that reference its number.
When Enable Subscript Reports is cleared, the provider does not announce value changes, and hi does not see updates.
Lawo publishes system labels against the source sys number. When a source with a lower sys number is removed, the labels of later sources shift.
hi finds matrices automatically in the top three levels of the Ember+ tree. Matrices deeper in the tree do not appear in hi.
hi sends Crosspoint changes to the crystal console one at a time, not in batches.
hi subscribes only to the parameters that are pinned on the Node. Other parameters in the tree do not update in hi.
hi sends an Ember+ keep-alive request every 5 seconds, and it disconnects when the provider does not answer within 10 seconds. hi requires the provider to answer keep-alive requests.

What's Not Supported

Firmware updates and DSP design - use the vendor's native software, such as its show-file editor or channel-configuration tool.
Offline scene and show-file programming remain in the vendor tooling.
Audio metering visualization beyond basic level readback where exposed by the protocol.
Ember+ Functions, including Qualified Functions, and function invocation. The Ember+ specification defines them from Glow 2.20, and hi never sends an Invoke command.
Ember+ Templates, including Qualified Templates, and template references. The specification defines them from Glow 2.40. hi requests all fields of each element, and it does not resolve template references.

Trademarks

Note

Lawo and crystal are trademarks of Lawo AG.

RIEDEL Communications is not affiliated with, endorsed by, or officially partnered with Lawo unless explicitly stated.