RIO Series

To make media matrixes more flexible in an environment using the Dante network, the RIO expansion box was born.

Sporting multiple variations for several kinds of ports, the standard 1U high rack equipment is equipped with two RJ45 Dante network ports and 16 in 16 out Phoenix interfaces for analog tranmission. The RIO series is capable of turning what was long distance, unstable analog wiring systems into a low-cost and efficient CAT5e/6 network for audio signal connections.

Check the specifications sheet for details on all device types.

In order to make the media matrix more flexible in the use of Dante network audio transmission function, and to connect with other Dante audio devices as an independent and universal interface to achieve mutual information exchange and long-distance transmission of audio signals, ACX once again introduced the Rio expansion box using Dante transmission according to the needs of the audio market.

At present, the RIO series has six product models, including R22-P, R44-P, R22p-WP-X and R22-WP-M, R1616-N and R1616-NX. All models provide two-way Dante network audio transmission - analog audio input, conversion Dante network audio signal transmission through network cable, and Dante network audio to analog audio breakthrough.

The RIO expansion box provides additional system flexibility, which makes the long distance and unstable analog wiring system convert into a low-cost and efficient digital CAT5e/6 network cable to realize audio signal connection, making the entire installation project more stable, controllable and flexible.

R1616 Dante expansion box is a standard 1U high rack equipment. The front panel is equipped with audio signal indicator, and the rear panel is equipped with two RJ45 Dante network ports and 16 in 16 out Phoenix interfaces for analog audio transmission. 

In terms of digital network audio transmission, R1616 Dante expansion box provides 16 in and 16 out Dante network audio transmission through a CAT5e/6 network cable (equipped with two Dante connection ports, one is the main interface and the other is the hot backup port).

In terms of analog transmission, R1616 Dante expansion box adopts 3.5mm Phoenix interface, providing 16 channels of stability, with 48V microphone phantom power supply, or line audio input and 16 bal-anced line output. The R1616 Dante expansion box is used as a pure Dante transmission device based on the standard Ethernet hardware configuration, with the functions of automatic device search and automatic DHCP IP address assignment. 

High quality A/D and D/A conversion ensure high fidelity audio quality. The Dante connection port of the R1616 Dante expansion box is connected to the Solaro series or other devices configured with Dante protocol through network cables, and the data transmission is controlled in real time through our ACX Designer control software.

ModelR1616-NR44R22
Input impedance>10k Ω>10kΩ>10kΩ
Output impedance50 Ω50Ω50Ω
Maximum level+20dBu+20dBu+20dBu
Mic/LineMic(+40dB Gain)/Line (0dB)-R1616-N /R1616-NX models Mic(+40dB Fixed Gain)/ Line (0dB)-R22 and R44 modelsMic (+40dB Fixed gain) Line (0dB)Mic (+40dB Fixed gain) Line (0dB)
TypeElectronically balanced w/ 48V Phantom powerElectronically balanced w/48V Phantom powerElectronically balanced w/48V Phantom power
Frequency response+/-0.15dB(20 to 20kHz)+/-0.15dB(20 to 20kHz)+/-0.15dB (20 to 20kHz)
Dynamic range110dB typ (unweighted)110dB typ (unweighted)110dB typ (unweighted)
CMRR>50dB (50 to 10kHz)>50dB @ 1kHz>50dB @ 1kHz
Crosstalk<-110dB<-110dB @ 1kHz<-110dB @ 1kHz
Distortion0.002% (1kHz @ +4dBu)0.002% (1kHz @ +4dBu)0.002% (1kHz @ +4dBu)
Processor40-bit Floating point40-bit floating point40-bit floating point
Sampling rate48kHz48kHz48kHz
Analog convertersHigh-performance 24-bitHigh-performance 24-bitHigh-performance 24-bit
ConnectorsPhoenix connectors, RJ45 Ethernet, RJ45 Dante®, lEC power socketEuro/Phoenix plug-in 3.5mm connectors(included), RJ45 with PoE capability,RJ45 with Dante connectivity,DC Jack (when PoE is not used)XLR,3.5mm(L+R), dual RCA (L+R).3.5mm (L+R Stereo), RJ45 with PoEcapability,RJ45 with Dante connectivity,DC Jack (when PoE is not used)
Power90-240 VAC(50-60Hz)+12VDC External power supply or PoE+12VDC External power supply or PoE
Dimensions19”x1.75”x9”(483x44x229mm)4 1.4”x1 3.4”x 4 3.4”(108x45x152mm)4.6”x4.6”x2”(117x117x50mm)
Rack mountwith vent between unitsSurface mount brackets (included)Surface mount brackets (included)
Weight5kg227g227g



Euroblock/Phoenix XLR I/O
I/O

XLR,RCA,3.5MM
I/O
2x2 IVO
Dante>Analog
R22-P

4x4 I/O
Dante>Analog
R44-P

2x2 I/O
Analog>Dante

R22-WP-XR22-WP-M
16x16 I/OR1616R1616-NX


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