HAECOAX4 4K HDMI Audio Embedder: What It Does and How
The HAECOAX4 embeds optical or analog stereo audio into an incoming HDMI 2.0b signal at 18Gbps, in place of the source's audio, set by a rear-panel…
Required switch settings for all KanexPro AUD-DTE- Dante products
Dante requires a managed Ethernet switch with specific configuration to operate reliably. An unmanaged switch will not handle Dante multicast traffic and may cause audio dropouts, discovery failures, or no-audio conditions.
⚠ ImportantAn unmanaged switch is not suitable for any Dante installation. Always use a managed switch with the settings below.
Controls multicast traffic handling. Without it, Dante multicast floods all ports causing audio failures.
Dante audio packets must be prioritized to prevent latency spikes and dropouts.
STP convergence causes audio glitches. Enable PortFast on all Dante device ports, BPDU Guard on those ports, and never PortFast on uplinks.
REQUIRED4. Flow Control — DisableIEEE 802.3x pause frames cause latency spikes. Disable flow control on all Dante ports.
NOT REQUIRED5. Jumbo Frames (MTU 9000)Standard Dante does not require jumbo frames — 1500-byte MTU is correct. Note: AV over IP (JPEG2000/SDVoE) on the same switch does require MTU 9000 on those ports.
Isolating Dante on a dedicated VLAN prevents corporate broadcast traffic from competing with audio multicast, allows clean QoS policies, and lets IT monitor the Dante network independently. Use e.g. VLAN 100 for all Dante device ports.

The HAECOAX4 embeds optical or analog stereo audio into an incoming HDMI 2.0b signal at 18Gbps, in place of the source's audio, set by a rear-panel…

It decodes Dolby Digital, DTS, DTS-ES 6.1 and PCM up to 192kHz from optical or coaxial input to stereo RCA and 3.5mm headphone outputs at once.

AUD-EXT-ARC150M sends HDMI ARC or optical S/PDIF audio over one CAT5e/6/7 cable: 150m / 495ft at 96kHz, or 90m / 295ft for ARC at 192kHz.
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