RU-RN22

RDL RU-RN22 - bidirectional Dante/AES67 network interface 2x2 with XLR microphone/line inputs and DSP

The RDL RU-RN22 from the RACK-UP series is a professional bidirectional Dante/AES67 audio interface that converts 2 analog microphone or line inputs to Dante/AES67 network channels and 2 Dante/AES67 network channels to analog microphone or line outputs. The device is designed for commercial and industrial installations - it can be mounted in rack cabinets, technical rooms, at conference tables, on shelves, and on mounting walls. Each output path, both analog and network, is powered by a built-in 4-channel mixer, which receives all 4 inputs of the device. Independent level control in the mixers and programmable DSP filters make the RU-RN22 much more versatile than a typical format converter. The analog inputs support line sources and dynamic and condenser microphones - they offer a preamplifier with gain up to 60dB, individually switchable P48 phantom power, and a compressor/limiter. Ultra-low latency of 2ms (analog–digital–analog) and A/D and D/A conversion at 24-bit resolution with a sampling rate of 48kHz or 96kHz ensure high sound quality. Each input and output is available on an XLR socket or detachable terminal block, with a nominal line level of +4dBu symmetrically for -18dBFS. The interface can be powered via PoE (Power over Ethernet) or from an external 24V DC power supply, available separately. In factory configuration, the inputs operate at line level, with phantom power and compressor/limiter turned off.

Functionality

• conversion of 2 microphone or line inputs to Dante/AES67 in factory configuration
• conversion of 2 Dante/AES67 channels to microphone or line outputs in factory configuration
• 4x4 mixing matrix with DSP filters - flexible system design
• 4-channel mixer on each output path - level adjustment for each source from full level (unity) to off (OFF)
• ability to create mixes, e.g., mono sum from stereo source
• ability to operate as an analog–analog audio processor with preamplifier, compression, 4 programmable DSP filters, and volume control
• gain adjustment for analog inputs from 0 to 60dB in 3.3dB steps
• individually switchable phantom power P48 for each input or automatically depending on gain
• switchable compressor/limiter on each analog input
• 1 DSP filter for each analog and Dante/AES67 input
• 3 DSP filters for each analog and Dante/AES67 output
• filter type selection: none (signal pass), high-pass, low-pass, shelving high/low, notch (boost/cut)
• all DSP filters fully programmable - ability to set multiple filters to the same function for higher-order filtering
• switchable 180° phase inverter on each analog output
• switchable line/microphone attenuator on each analog output (-50dB)
• analog output adjustment in 1dB steps below +4dBu (line level) or -46dBu (microphone level)
• Dante/AES67 and analog output adjustment in 1dB steps from 0 to -63dB, then OFF
• remote volume control via compatible RDL controllers (available separately)
• configuration of all parameters in RDL CONSOLE software (version 3.0 or newer)

Features

• network protocol: Dante or AES67, 100Mbps, RJ45 connector
• ultra-low latency: 2ms (analog-digital-analog)
• A/D and D/A conversion: 24-bit, 48kHz or 96kHz
• analog inputs and outputs on XLR sockets or detachable terminal blocks
• terminal blocks for connecting balanced or unbalanced signals
• P48 phantom power compliant with IEC 61938:2013
• input impedance: >1.2kΩ
• maximum input level: +22dBu
• input self-noise (EIN): < -129dBu at 60dB gain, < -131dBu (A-weighted)
• very low noise level: < -69dB below working level at maximum gain of 60dB
• THD+N of inputs: < 0.05% (20Hz-20kHz)
• crosstalk of inputs: < -70dB (20Hz-20kHz)
• protection of analog outputs against external phantom voltage up to P48
• nominal line level: +4dBu balanced for -18dBFS
• maximum output level: +22dBu (line), -28dBu (microphone)
• dynamics headroom above +4dBu: >18dB
• output impedance: 150Ω balanced
• frequency response: 20Hz-20kHz (+0, -0.75dB)
• THD+N of outputs: < 0.01% (20Hz-20kHz)
• noise level of outputs: < -85dB below -18dBFS
• crosstalk of outputs: < -74dB (20Hz-20kHz)
• multicolor LED signal level indication on each input and output: white, green, orange, red
• device status LEDs: SYNC+AUDIO, SYNC, NO SYNC, NO POWER
• power supply: PoE (class 0, IEEE 802.3af) or external 24V DC power supply, 220mA (5.28W)
• durable, fully metal housing - free-standing, surface mount, or rack mount
• operating temperature: 0-40°C
• dimensions (W x H x D): 145.8 x 41.7 x 162.6mm
• weight: 0.82kg
• manufactured in: USA
• warranty: 7 years

RDL RU-RN22 is a versatile bidirectional Dante/AES67 interface that combines the conversion of microphone and line signals to and from the network with a 4x4 mixing matrix, preamplifiers, compression, and advanced DSP processing. Ultra-low latency, PoE power, P48 phantom power, and a robust metal housing make it a reliable solution for professional audio installations in Dante and AES67 networks, designed for continuous operation in demanding environments and backed by a 7-year warranty.