Ravenna

Ravenna was introduced in 2010.

Ravenna is a place in Italy where Dante was buried

Open Technology

Unlike most other existing networking solutions, RAVENNA is an open technology standard without a proprietary licensing policy. Interested parties are invited to participate in the ongoing development activities. In order to emphasize this open approach, ALC NetworX has teamed-up with renowned companies from the Pro-Audio market to present a variety of RAVENNA-powered devices.

Standard Protocols

RAVENNA is an IP-based solution. As such it is based on protocol levels on or above layer 3 of the OSI reference model. All protocols and mechanisms used within RAVENNA are based on widely deployed and established methods from the IT and audio industry or comply with standards as defined and maintained by international standardization organizations like IEEE, IETF, AES and others.

Source: Ravenna

RAVENNA Virtual Sound Card is available for Windows.

It has WDM drivers for recording and playback.

Merging Technologies Hapi $2,495 / € 2.356

This is the smaller version of the Horus aptly called Hapi

Digital I/O

8 AES/EBU I/O (DUB)
8 ADAT / 2 SPDIF (Switching)
RAVENNA / AES67 (RJ45)
Word Clock I/O

Synchronization I/O

LTC
MTC
Video Reference

Sample Rate support

44.1 – 384 kHz PCM
DXD and DSD64/128/256

User Interface

Remote control over LAN (CAT5E/CAT6) using a Webbrowser
Direct access on unit with rotary control

A modular design supporting Ravenna.

HAPI Base unit + 8 Line Out up to DSD/DXD £2,608.00

At the PC site Merging has ASIO2 (Win) and CoreAudio drivers.

This enables you to use any media player on Win supporting ASIO and send this to the Hapi DAC.

Merging Technologies Nadac US$10,500 / €9.799

One of the very few IP DACs targeting the audiophile community.

Ethernet (RAVENNA/AES67) on RJ45 connector. Accepts 44.1kHz – 384kHz PCM, DXD, DSD 64, DSD128, DSD256
Connects from the computer using standard ASIO on Windows and CoreAudio on Mac
Allows cable runs up to 100m on a single Cat5e or Cat6 cable, with possible repeaters, hubs or switches
Asynchronous communication.
The MERGING+NADAC controls the rate at which the digital audio data is sent to the DAC, not the computer or the player
Ultra-precise communication clocking driven by the DAC….
Precision Time Protocol is at the heart of RAVENNA, ensuring a clock resolution of one nanosecond
AES/EBU on 3-pin female XLR connector (44.1kHz - 192kHz PCM)
SPDIF Optical on Toslink connector (44.1kHz - 96kHz PCM)
SPDIF Coaxial on RCA Phono (44.1kHz - 96kHz PCM)
Networdk: 44.1 kHz – 384 kHz, DSD64, DSD128 and DSD256

Genelec 8430A IP SAM™ studio monitor

Active speaker with AES67/Ravenna input introduced in 2016.

References

ravenna network website