Line Level Audio to Network Interface-Dante

Ideal Use Cases

The RDL AV-LN4 is designed for audio systems that need to convert four line-level XLR inputs into Dante network audio channels. It provides a direct connection between line-level sources and a Dante network without combining the four inputs into a single channel. The interface supports 44.1 kHz and 48 kHz sample rates, with 48 kHz as the default, and converts audio at a 24-bit depth. Its +4 dBu operating level makes it suitable for equipment using professional line-level signals. The durable all-metal enclosure and 0° C to 50° C operating range support use in permanently integrated or portable audio systems where reliable network conversion and physical protection are important.

Why Choose This Model

The AV-LN4 combines four female XLR inputs, Dante transport, signal indication, and two power options in a compact enclosure. Each input supports a maximum level of +24 dBu, while the specified audio relationship sets +4 dBu at -20 dBFS and +24 dBu at 0 dBFS. This defined gain structure helps the interface fit systems built around professional operating levels. Audio is carried over a 100 Mbps Ethernet connection using the Dante digital audio protocol. The RJ45 Neutrik etherCON-style network connector provides the specified network interface, while front- and rear-panel indicators provide immediate information about Ethernet activity, network synchronization, and audio level.

Installation and Integration

Four female XLR connectors receive the line-level audio inputs. Network connection is made through the RJ45 Neutrik etherCON-style port, which operates at a 100 Mbps transmission rate. The interface can be powered through PoE Class 0 in accordance with IEEE 802.3af or from a ground-referenced 24 Vdc supply rated at 500 mA. This choice allows the power method to be matched to the available system infrastructure.

The enclosure measures 5.19 inches wide, 1.68 inches high, and 5.97 inches deep, corresponding to 13.18 by 4.27 by 15.16 centimeters. Ethernet Link and Speed indicators are positioned on the rear panel. The front panel provides a Sync indicator and four indicators associated with the dual-LED VU metering. These seven indicators allow connection status, network synchronization, and input activity to be checked from the unit. The specified ambient operating environment is 0° C to 50° C.

Performance Highlights

The AV-LN4 covers a frequency range of 20 Hz to 20 kHz with a stated tolerance of ±0.1 dB. Input impedance is greater than 50 kΩ. Noise below the +4 dBu operating level is specified at less than -85 dB. Total harmonic distortion plus noise is less than 0.025% from 20 Hz to 20 kHz when measured at +4 dBu and -20 dBFS, with a typical value of 0.005% at 1 kHz.

Common-mode rejection is greater than 70 dB from 50 Hz to 120 Hz. Crosstalk is less than -80 dB from 20 Hz to 20 kHz at operating level between any input and any other input, improving to less than -85 dB at 1 kHz. The interface supports 24-bit conversion at either 44.1 kHz or the default 48 kHz sample rate. Published specification conditions state a gain and level tolerance of ±1 dB, a source termination of 150 Ω, and analog-to-digital values measured in the digital domain.

What Makes It Different

The AV-LN4 brings four line-level XLR sources onto a Dante network through one dedicated interface while retaining clearly defined levels for professional audio integration. Its combination of female XLR inputs, a Neutrik etherCON-style RJ45 connector, and an all-metal enclosure addresses both audio connectivity and physical durability. Front-panel synchronization and VU indications keep essential operating information visible, while the rear Ethernet Link and Speed indicators help confirm network connectivity. Support for both IEEE 802.3af PoE Class 0 and ground-referenced 24 Vdc power gives the installer two documented ways to energize the unit.

Final Assessment

The RDL AV-LN4 is a focused four-channel interface for converting professional line-level XLR inputs to Dante network audio. It offers 24-bit operation, selectable 44.1 or 48 kHz sample rates, a 100 Mbps network connection, and documented audio performance across the full 20 Hz to 20 kHz range. With +24 dBu maximum input capability, detailed status indication, two supported power methods, and a durable all-metal enclosure, it provides a clearly specified path from four analog line inputs to a Dante network.