DMIX 128 – ADVANCED ST 2110 / AES67 / NETWORK AUDIO FAQ

dMix 128 – Network Audio & ST 2110 FAQ

Technical reference for broadcast, live sound, and system-integration clients using dMix128 in AES67 / ST 2110 networks and mixed-vendor audio-over-IP environments.

The dMix 128 supports AES67 natively, including full PTPv2 synchronization and up to 48 bidirectional network-audio streams. Support for ST 2110-30 (PCM audio) is currently in development and is scheduled for release within the next 4 months.

Supported now

  • AES67 compliant audio streaming
  • PTPv2 / SMPTE-2059-2 timing
  • Up to 48 simultaneous streams, 2–8 channels each → up to 384 channels each way

Coming soon

  • ST 2110-30 (Class A) native send/receive

AES67 is native on the main network ports. ST 2110-30 will be native as part of a firmware update (no option card required). ST 2110-31 is not implemented and currently not planned.

Sample rates

  • 48 kHz and 96 kHz
  • PCM 24-bit
  • Packet times: 83 μs, 125 μs, 250 μs, 1 ms

The dMix 128 uses PTPv2 following the AES67 / SMPTE-2059 profile with BMCA master election. It can operate as a PTP follower or as a PTP master when configured accordingly.

Supported clock behaviour

  • PTP follower (standard mode)
  • PTP master (device can assume master role when set to clock master)

Not supported

  • PTP Boundary Clock
  • PTP Transparent Clock

PTP settings

  • Profile: PTPv2 (AES67 / SMPTE-2059-2 compliant)
  • Domain: 0 (AES67 default)
  • Priority 1:
    • Default = 128
    • Set to 1 when dMix128 is manually configured as clock master
  • Priority 2: Default values

Switch requirements

  • IEEE-1588 aware switching strongly recommended
  • QoS for PTP, RTP, and SAP
  • Multicast IGMPv2 or IGMPv3

Current capabilities

The dMix 128 supports full AES67 interoperability with Dante, Q-SYS, RAVENNA, and 2110-30 equipment that supports AES67 mode. It uses SDP-based stream description and standard multicast subscription control.

Not yet implemented

  • NMOS IS-04 / IS-05 (Discovery & Connection Management) → Planned for a future major update
  • ST 2022-7 Seamless Protection Switching → Not implemented today

Real-world deployments

The dMix 128 has been tested in mixed AES67 environments with:

  • Dante/AES67-enabled broadcast consoles
  • Q-SYS systems
  • RAVENNA-based networks
  • Generic PTP master/slave network clocks

The dMix 128 operates natively at 96 kHz and maintains extremely low end-to-end latency even in complex DSP workflows.

96 kHz operation (native DSP rate)

Analog → AD → Network → DSP → DA → Analog ≈ 0.7 ms total round-trip.

48 kHz operation

Upsampling/downsampling adds conversion stages: ≈ 1.3 ms total (typical).

DSP impact

All channel processing, including EQ, dynamics, filters and routing, occurs at 96 kHz, maintaining extremely low additional latency.

Supported

  • Ring topology redundancy when multiple dMix units are linked
  • Dual power-supply redundancy (internal)
  • Ability to create redundant AES67 links via network switches
  • Auto-recovery after reboot or brown-outs
  • Real-time fault monitoring & logging

Not currently supported

  • ST 2022-7 seamless A/B stream redundancy
  • Automatic fallback to alternate multicast stream sources

The system provides a fully documented open API for integration with consoles, controllers and automation systems.

Supported control protocols

  • REST API (full parameter depth)
  • WebSocket real-time control
  • OSC
  • MIDI
  • Examples and libraries in Python, C++, Go
  • Templates for Q-SYS, HiQnet, and generic install-control systems

Controllable parameters

  • Preamp gain / phantom power
  • Routing & crosspoints
  • EQ, filters, dynamics
  • Delays
  • Bus configuration
  • Snapshots & scene recall
  • Mutes, solos, groups, channel labels
  • And more...

Third-party consoles can control all parameters; control depth is not restricted.

Examples:

  • A broadcast console can remote-control analog gain on dMix inputs.
  • A monitor desk can adjust EQ & dynamics on network audio returns.
  • FOH can run scene changes via OSC or API.

Templates and workflows exist for:

  • DiGiCo
  • Yamaha
  • Q-SYS
  • Install controllers (Crestron/AMX/Extron via API)
  • Generic OSC-based live consoles

Typical workflow examples

  • FOH → Monitors → Broadcast Split: 128 internal channels, 384 network channels, zero need for external stageboxes.
  • Recording truck integration: AES67 streams directly from the dMix into recording DAWs or 2110-enabled interfaces.
  • Network-based patching: dMix 128 as a central routing core with 20M+ crosspoints.

Yes. The dMix 128 web interface allows multiple units to be displayed and controlled simultaneously from any screen, locally or remotely.

Capabilities include:

  • Multiple units displayed simultaneously on any screen
  • Remote control locally or from overseas
  • Device health & thermal monitoring
  • Firmware version management
  • Event logging & fault reports
  • Network diagnostics
  • Cluster-wide configuration
  • No special software required — standard web browser only

Routing capacity

  • Up to 20,000,000 crosspoints (significantly more than typical competitors)

Integrated architecture

  • Mixer + DSP + Matrix + AES67 + MADI + expansion cards
  • One unified 96 kHz architecture
  • No need for multiple chassis or external DSP units

Scalability

  • Fully modular channel count
  • Expandable network-audio capacity
  • DSP performance does not degrade with routing load

Cost efficiency

  • High channel count per dollar
  • No per-stream licensing fees
  • No DSP card limitations

The dMix 128 follows a matrix-core architecture, but with the flexibility of a modular toolbox.

Integrators can shape the device to match any workflow (broadcast core, live split engine, install matrix, conference DSP, etc.).

This provides:

  • A central high-power DSP engine
  • Software-defined routing and mixing
  • Ability to behave as a console, a matrix, or a hybrid

dMix 128 provides:

  • Dual redundant PSU
  • Auto-recovery on brown-out or hardware restart
  • Event logging and error reporting
  • Standard IP network redundancy (ring topology)
  • Safe firmware system (A/B bank coming soon)

Typical interoperability examples:

  • Dante consoles running AES67 mode → dMix 128
  • Lawo/Calrec 2110 routers (AES67 fallback) → dMix 128
  • RAVENNA-based systems → dMix128
  • Q-SYS → full control & audio exchange
  • MADI consoles via optional interface
  • DAWs via AES67 (Reaper, Pro Tools via Ravenna/AES67 drivers)

The open API and open network-audio implementation allow the dMix 128 to sit inside any mixed-manufacturer ecosystem.

General positioning

  • More competitive for large channel counts
  • No paid audio-stream licenses
  • High IO density per dollar
  • DSP included — not modular add-on cards

Systems requiring 400–700 network I/O channels tend to be significantly more cost-efficient with dMix 128.

Compared to similar platforms, the dMix 128 reduces cost over 5–7 years.

Advantages:

  • No costly option cards or expansion DSP
  • Free firmware updates
  • Built-in 96 kHz DSP (no upgrade needed)
  • Cheaper servicing and easier field repair
  • Higher channel count per unit, reducing rackspace and power
  • Flexible architecture reduces need for ancillary gear (matrices, DSP cores, converters, etc.)

These are the reset options:

The dMix 128 provides two hardware reset modes depending on how long the reset button is held while the device is powered on.

Reset mode 1 – Network reset (3 seconds)

With the unit powered on, press and hold the reset button for approximately 3 seconds.

  • The red LED will turn on.
  • The blue LED remains unchanged (may appear violet).
  • The device IP configuration is reset to DHCP.
  • After reboot, the unit returns to the previous configuration (routing, DSP and system settings are preserved).

Reset mode 2 – Factory reset (10 seconds)

Press and hold the reset button for approximately 10 seconds.

  • At 3 seconds, the red LED turns on.
  • At 10 seconds, the LED turns off.
  • The unit will reboot automatically.
  • The device returns to factory configuration:
    • IP mode: Auto IP
    • Device name: dmix.local
    • No mixer setups (all mixer configurations are cleared)
No FAQ entries match your search. Try a different keyword (for example: “AES67”, “PTP”, “latency”, “redundancy”, or “consoles”).