Audix DN43 - Dante / AES67 Audio Interface for Ceiling Microphones RJ45
The Audix DN43 is the heart of the Audix Dante integrated microphone system, designed to transform professional audio installation into a fast, clean, and error-free process. This audio interface acts as a sophisticated bridge between high-end analog ceiling microphones and modern digital networks, enabling the transmission of high-performance audio over Ethernet protocols with unprecedented ease.
In today's audiovisual installation environment, simplicity and reliability are critical. The DN43 eliminates the need for complex field soldering and traditional wiring errors. Thanks to its intelligent design, the entire workflow—from high-fidelity audio to logic control functions such as power on/off and status LED indicators—travels over a single CAT5, CAT6, or CAT7 cable. This connects both the interface and the microphone using shielded RJ45 connectors, ensuring absolute signal integrity from capture to digital processing.
The device is specifically designed to accommodate a powerful hybrid setup: it features a dedicated input for the acclaimed Audix M3 three-element microphone (which captures three discrete audio channels for immersive coverage) and a second input for single-element microphones (such as the M70WD or M55WD models). In total, the interface handles four channels of 24-bit/48kHz digital audio, ensuring that every nuance of the voice is preserved with crystal clarity.
Beyond audio conversion, the DN43 is a comprehensive control tool. It offers 5V logic outputs per port with source/sink capability, allowing microphone LED rings to be managed directly from a network-connected DSP. Furthermore, each audio channel features software-configurable settings, including eight selectable gain levels and high-pass and low-pass filters, enabling sound engineers to tailor the frequency response to the specific acoustic characteristics of the room before the signal reaches the final mix.
Main features
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High Fidelity Conversion: Processes audio at 24 bits and 48 kHz, guaranteeing studio standards in fixed installations.
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4-Channel Management: Designed to simultaneously support a three-element microphone (M3) and a single-element microphone, totaling four independent audio channels.
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Comprehensive RJ45 Connectivity: Audio, 48V Phantom Power and logic control are transmitted over a single network cable, drastically simplifying the infrastructure.
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Advanced DSP Control: Selectable preamp gain and independently configurable cutoff filters (high pass and low pass) for each channel via software.
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Logical Functions: Includes virtual GPIO ports to remotely control LED indicators and mute functions over the network.
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Configuration Security: Internal flash memory that saves settings, preventing loss of configuration in case of power outages.
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Plenum Rated Design: Rated under UL2043 standard, suitable for safe installation in false ceiling spaces and air chambers.
Benefits for the installer and the user
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"Plug-and-Play" Installation: By using standard RJ45 terminations, on-site labor time is reduced and failures due to cold solder joints or crossed wires are eliminated.
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Noise Immunity: Balanced inputs with RFI filtering protect the signal against radio frequency interference, common in high-tech buildings, mobile phones, and WiFi networks.
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Network Flexibility: Compatible with AES67, allowing interoperability with other audio over IP systems beyond Dante.
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Clean Aesthetics: Allows for discreet ceiling installations without bulky junction boxes or exposed or messy analog wiring.
Use cases
The Audix DN43 interface is the ideal solution for corporate and educational environments that require high-quality voice capture with centralized management:
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Boardrooms and Conference Rooms: To capture clear audio from multiple participants using the M3 microphone in the center and additional units at the ends.
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Distance Education and Hybrid Classrooms: Ensures that the voice of the teacher and students is transmitted clearly to remote students.
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Auditoriums and Convention Centers: Where analog cabling distances would be problematic; the Ethernet network allows long runs without signal degradation.
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Government Facilities and Courts: Where security, recording clarity, and system reliability are non-negotiable requirements.
Frequently Asked Questions
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Do I need an external power supply for the DN43?
Not necessarily. The device uses PoE (Power over Ethernet), so it can receive power directly from a compatible network switch. However, it also supports external 48V power if the switch does not have PoE.
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Can I connect any RJ45 microphone to this interface?
The DN43 is specifically optimized for Audix installation microphones with RJ45 output (M3, M55WD, and M70WD series). Microphones from other manufacturers may not be compatible with Audix's specific audio and logic pinout.
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What happens if the power goes out in the building?
The device features non-volatile memory. Once power is restored, the DN43 will automatically recall its last gain and filter settings without requiring reprogramming.
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Is it compatible with Dante Domain Manager?
Yes, the DN43 is DDM-ready, enabling secure and advanced management in large corporate networks.
Project description
A 4-channel Dante/AES67 network audio interface designed for ceiling-mounted microphones. The unit must provide 24-bit/48kHz analog-to-digital conversion and have two RJ45 input ports: one optimized for a three-element microphone and one for a single-element microphone. It must include 48V phantom power, RFI filtering, 5V logic outputs for LED control, and software-configurable gain/filter settings. Power will be supplied via PoE (IEEE 802.3af), and the chassis must comply with UL2043 plenum space regulations.
