GENELEC 9401A Multichannel Audio Over IP Interface Instruction Manual

9401A Multichannel Audio Over IP Interface

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Product Specifications:

• Model: Genelec 9401A

• Type: Multichannel Audio-Over-IP Interface

• Channels: 16 channels of AES-EBU digital audio feeds

• Compatibility: Designed for use with Genelec SAM monitors and
  7300 Series subwoofers

• Power Consumption: Less than 4.5 watts in power-save state

• Network Connection: Standard CAT cable for IP network
  connection

Product Usage Instructions:

Installation:

1. Switch off/disconnect mains power from all system devices
before connecting signal cables.

Connections:

1. Pay attention to the GLM network and Ethernet connectors. Use
the 8P8C (RJ45) connector for the GLM network, not compatible with
Ethernet or PoE.

2. Mains input supports a wide voltage range (100-240 VAC, 50-60
Hz). Use a harmonic filter if mains power is from a generator or
low-quality UPS.

3. Digital audio stream inputs use a standard 1000BASE-T
compatible network interface with an RJ45 connector. Two inputs
offer redundancy and fast hand-over.

Operating Modes:

The 9401A has an Intelligent Signal Sensing (ISS) function that
puts the interface into a power-save state when no AoIP stream is
present. It consumes less than 4.5 watts in this state and wakes up
when a stream is sensed.

Monitoring Setup:

1. The 9401A supports monitoring layouts up to 9.1.6
configuration for immersive digital audio.

2. Use the auxiliary AES/EBU output for additional stereo
monitor systems or headphones with a suitable interface device and
amplifier.

Audio Output:

1. The multichannel audio output uses a DB25 connector to
deliver 8 AES/EBU audio signals, carrying 16 channels of audio.

2. LFE signal is output using the subwoofer interface and is
available when needed.

Frequently Asked Questions (FAQ):

Q: How can I configure the waiting time before ISS

activates?

A: Use the Genelec Loudspeaker Manager (GLM) software to adjust
the waiting time before ISS puts the 9401A into power-save
mode.

Q: Can I connect headphones directly to the 9401A?

A: The auxiliary AES/EBU output can be used to connect
headphones, but you may need a digital-to-analog interface device
and a headphone amplifier for proper functionality.

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9401A

Operating Manual
Genelec 9401A
Multichannel Audio-Over-IP Interface

Genelec 9401A Multichannel Audio-Over-IP Interface

Introduction
Congratulations and thank you for purchasing the Genelec 9401A multichannel audio-over-IP (AoIP) interface. This manual addresses the setting up and use of the Genelec 9401A intended for use with 7300 Series subwoofers.
The Genelec 9401A enables Smart Active Monitoring (SAM) monitors and subwoofers to receive multichannel audio presentations using standard AoIP networks. The 9401A offers 16 channels of AES-EBU digital audio feeds for SAM monitors and a dedicated AES/EBU interface for 7300 series Smart Active Monitoring (SAM) subwoofers, as well as an auxiliary AES/EBU output for supporting monitoring systems, such as headphones.
The 9401A enables the monitoring of immersive digital audio, supporting monitoring layouts up to 9.1.6 configuration when the low frequency effects (LFE) channel is also used.
The auxiliary AES/EBU output can be used to connect, for example, an additional stereo monitor system or headphones when a digital-to-analog interface device and a headphone amplifier is used.
Genelec’s energy-saving Intelligent Signal Sensing (ISS) function automatically puts the 9401A into a power-save state when no AoIP stream is present. The waiting time before activation can be configured using Genelec Loudspeaker Manager (GLM) software. When

ISS is on your monitoring system will remain ready for action and the 9401A will consume less than 4.5 watts of power. The interface will wake up and switch to normal operating mode when it senses an AoIP stream.
This 9401A is supplied with: · Mains cable · 5 m GLM network cable · Quick Setup Guide · Operating manual via QR code
The 9401A uses in addition a standard CAT cable for the IP network connection.
Installation
We strongly recommend switching off/ disconnecting mains power from all system devices before connecting signal cables.
Connections
Pay attention to the GLM network and Ethernet connectors. The GLM network uses the 8P8C (RJ45) connector but is not compatible with Ethernet or Power over Ethernet (PoE).
The mains input supports a wide voltage range (100-240 VAC, 50-60 Hz). If the mains power is provided by a generator, inverter or a low-quality UPS device, we recommend using a harmonic filter to reduce the unwanted harmonic distortion.
The two digital audio stream inputs for ST2110, AES67 or Ravenna digital audio

stream uses a standard 1000BASE-T compatible network interface with an RJ45
connector. The two inputs offer redundancy and can be configured for fast and seamless hand-over in case of the failure in the primary
stream input.
When the audio content in the stream
carries a low frequency effects (LFE) channel, the 9410A is configured to extract the correct channel as the LFE content and assign the LFE content to the AES/EBU output and subframe by using the GLM
software.
The multichannel audio output for the
monitors uses one DB25 connector to deliver 8 AES/EBU audio signals, carrying 16 channels of audio. The output is a bitto-bit copy of the stream content audio
signals, so the outputs retain the original
signal quality without modification. When
used, the LFE signal is output using the subwoofer interface and is also available
through the DB25 connector, meaning that the LFE content is available for any device connected to this output. The content of
the multichannel audio output is configured using the HTTP web interface.
The digital audio output for the subwoofer
is a single male XLR connector, which uses
an AES/EBU cable to carry the sum of all the main channel inputs over one AES/EBU subframe and the LFE channel, if used, over the other AES/EBU subframe. A GLM Kit or SAM Reference Controller (RC) and Genelec

OUT

LINK

ETHERNET

64 x 64 CHANNEL
MATRIX

AUX 2 CH

MAIN 16 CH

RAVENNA / AES67 / ST2110-30

*SUM AND LFE PROCESSING

1-2 3-4 5-6 7-8 9-10 11-12 13-14 15-16

SAMPLE RATE CONVERTER

SUM WITHOUT LFE +
LFE (ONE OF 1-16)

SUM LFE*
AES3

Figure 1. Functional block diagram of the 9401A and the sample rate converter (SRC)

MAIN OUT 1-8 SUBWOOFER AUX AES

Loudspeaker Manager (GLM) software is required to use the 9401A with 7300 Series subwoofers. The AES/EBU output on 7300 Series subwoofers enables the daisychaining of additional SAM subwoofers to increase the capacity of the system’s low frequency acoustic output (SPL). To make this possible, GLM software will align the playback of the complete subwoofer system with the rest of the monitoring system. The 9401A includes two GLM Network connectors for management using Genelec Loudspeaker Manager (GLM) software.
The auxiliary digital audio output is a single XLR connector. It delivers two channels of audio. The content of the auxiliary output is configured using the HTTP web interface. The 9401A includes two GLM Network connectors for management using Genelec Loudspeaker Manager (GLM) software.

DIGITAL IN
DIGITAL OUT
DIGITAL IN
AES OUT 1 8
= AES/EBU DIGITAL CABLING = GLM NETWORK CABLING
Figure 2. An example monitoring system connected with the 9401A interface

DAC

GLM ADAPTER

SUBWOOFER LINK

AUX OUT

ETHERNET

GLM NETWORK

AES OUT

AUDIO SOURCE

MAINS INPUT

Subwoofer Link and AUX Stereo AES XLR outputs

GLM Network

RISQUE DE CHOC ÉLECTRIQUE. NE PAS OUVRIR. NE PAS EXPOSER À L’EAU OU L’HUMIDITÉ.

AUCUN COMPOSANT À L’INTÉRIEUR REMPLAÇABLE PAR L’UTILISATEUR.

ADRESSER TOUTE RÉPARATION À UN PERSONNEL QUALIFIÉ. CET APPAREIL DOIT ÊTRE RACCORDÉ À LA TERRE.

LAITE ON LIITETTÄVÄ SUOJAKOSKETTIMILLA VARUSTETTUUN PISTORASIAAN.

APPARATET MÅ TILKOPLES JORDET STIKKONTAKT.

APPARATEN SKALL ANSLUTAS TILL JORDAT UTTAG.

AES OUT 1 8

WARNING
ELECTRIC SHOCK HAZARD. DO NOT OPEN. DO NOT SUBJECT TO WATER OR MOISTURE. NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL. USE EARTHED MAINS CONNECTION ONLY.

SERIAL NUMBER

9401A

MULTICHANNEL AOIP CONVERTER

MADE IN FINLAND

www.genelec.com

SUBWOOFER LINK

AUX STEREO OUT

AES OUT

ETHERNET AES67 ST2110

DO NOT CONNECT TO ETHERNET!

SECONDARY

PRIMARY

GLM NETWORK

8 x AES outputs with Tascam analogue pinout

AES 67 AoIP audio inputs

Figure 3. Connectors on the back panel of the 9401A interface

THIS DEVICE COMPLIES WITH FCC PART 15 AND CANADIAN ICES 003 RADIO FREQUENCY CLASS B EMISSION REQUIREMENTS. REFER TO OPERATING MANUAL FOR FULL INFORMATION.
MAINS INPUT 50 / 60 Hz 12 W 100 240 V~
Mains

Figure 4. Example connection to computer and Genelec 9320A Reference Controller

Redundant IP Network Input
The 9401A offers two network interface connections. This enables redundant connectivity following the ST2022-7 specification. The 9401A can be connected to two separate networks, so that audio streaming is seamlessly switched over if the primary IP network is compromised. Refer to the Web interface function reference for additional information on the network interface settings.
The primary network interface is selfconfiguring by default. This means that the 9401A will automatically assign an IP address to itself without DHCP or DNS servers. The assigned IP address is visible in GLM. It will advertise its services and be discoverable through Bonjour, Avahi or similar implementations. For discovery, registration and control in ST2110 networks, 9401A supports the NMOS IS-04 and NMOS IS-05 interface specifications.
The secondary network interface is set in switched mode by default. IP Packets entering the primary port will be forwarded to the secondary port, allowing a second device to be connected without using a separate network switch. It can be configured using the web interface, which can be accessed through GLM. Both network interfaces support zeroconfiguration, DHCP or static IP operation.

The input connector of the 9401A follows the 1000Base-T standard for Gigabit Ethernet. Slower transmission speeds (10Base-T, 100Base-T) are not supported. Use of CAT 5e cabling or better is necessary.
Selection of IP switch
The 9401A is fully compatible with standard Gigabit Ethernet and IP switch technology. Genelec recommends using a managed switch. Managed IP switches offer the ability to configure, manage and monitor the local area network, typically using a web browser user interface, and this helps in creating a well working system.
The IP switches should support QoS and multicast groups. Differentiated services (DiffServ) typically implement QoS prioritization of IP traffic. DiffServ marks IP packets according to priority. In response, IP switches can prioritize media traffic to improve system performance. Differentiated services code point (DSCP) markings in the IP packet headers are sensed by the QoS capable IP switch. Multicast groups can be used to reduce traffic in large networks by forwarding data only to the devices that are set to receive it. Genelec does not endorse certain IP switch brands as the 9401A works perfectly with all high-quality standard IP switches with these capabilities. Use of

1 Gbps (Gigabit) or faster IP switches is mandatory.
Network Structure
For redundant connectivity, Genelec recommends a spine-leaf architecture. Otherwise, a star architecture is recommended. IP device ports should not be daisy chained to several IP devices. Each IP switch must have its own IP address.
The 9401A can act as an IEEE1588-2008 compliant clock source for the ST2110, AES67 or Ravenna network using the Precision Time Protocol version 2 (PTPv2). The PTP on 9401A is fully configurable through the web interface. Refer to the Web interface function reference for additional information on the PTP settings.
Audio-over-IP requires the use of a cable-based LAN network. Low-latency uncompressed audio-over-IP streaming is not feasible over WLAN.
ST2022-7 Setup
ST2022-7 support is enabled by selecting the “Multi-Interface mode” option under Network in the web interface General settings page. The two interfaces should be configured to use different IP address ranges to avoid address conflicts. Changing the interface settings requires a reboot of the

Sampling rate Word length Routing Latency

AES67 Mode 48 kHz 24 bits Multicast 3 ms

Table 1. Using the 9401A with Dante systems

Indicator Power switch
Input signal indicator

Colour, indication Solid green Blinking green Green blink every 10 s No light Solid green

No light Table 2. Front panel indicator light functions

Meaning
Power on, normal operation
GLM is adjusting 9401A 9401A in power save mode
No power, power off Valid digital audio is detected and received Valid input is not detected

Figure 5. Digital audio output cable pin-out.

device. The 9401A will automatically detect a ST2022-7 stream source and seamlessly switch over if one of the Ethernet links is disconnected.
Dante Compatibility
9401A can interoperate with Dante systems using the AES67 mode. This must be enabled in Dante systems that connect to 9401A to enable audio to pass. See Table 1.
Output Cabling
The AES59 standard offers a configuration to deliver 16 channels of digital audio in one direction. This configuration is used in the output DB25 connector of 9401A. The audio output in 9401A is intended for connections to monitors. The recommended cable for this connection is an 8 x XLR male fan-out cable following the AES59 pinout, also known as the Tascam analogue pinout. For example, an Avid cable type DB25-XLRM DigiSnake can be used. In addition, AES/EBU XLRto-XLR cables are needed to extend the signals from the snake output onwards to the monitors.
The AES59 standard output connector pinout of the 9401A is shown in Figure 5. We strongly recommend that a high-quality AES/ EBU digital audio cable be used.
Controls and Indicators
The 9401A’s front panel features a power switch with a power-on light as well as nine

active-connection indicator lights for the AES/EBU outputs.
The 9401A is configured using Genelec Loudspeaker Manager (GLMTM) software. Please refer to the `Use With GLM Management Network’ section below for details. While editing the 9401A settings in GLM, the interface’s power-on light will blink continuously. A lit light indicates that the corresponding AES/EBU is available for output. If an output light is off, there is an AES/EBU data issue or there is no valid AES/ EBU audio. See Table 2 for a list of indicator lights and their functions.
Troubleshooting
If there are issues with audio transmission such as cuts or latency peaks, please check the following common issues. For additional information on how to perform each step, consult the manufacturer documentation or a technician.
· Processor usage of the connected computer. If the usage is at over 75 %, there is a risk of cuts in transmission. Attempt closing unnecessary background programs.
· Power saving settings of the processor or the Ethernet adapter. Attempt disabling these settings or setting the computer to high performance mode. If using a laptop, avoid using battery power and run on mains power instead.
· Antivirus and firewall settings. Make sure

that the antivirus is not interfering with the streaming programs, and that the necessary firewall rules are set. · Buffer length of the transmitter or receiver. Attempt increasing the buffer length or setting additional safety playout delay in the web interface general settings. If using different Ethernet adapter models in ST2022-7 mode, increasing the buffer size might be necessary to avoid cuts between switching. · Other Ethernet or wireless adapters (Bluetooth, Wi-Fi). If these are active at the same time with the Ethernet adapter used for audio transmission, latency peaks may occur. Attempt disabling all other network and wireless adapters. An active internet connection on the streaming Ethernet interface may also cause latency peaks. · If using an external Ethernet adapter, it is recommended to use Thunderbolt instead of USB for optimum performance. · For the lowest latency, a network adapter with hardware PTP timestamping support should be used.
Configuration and Management Using GLM and
the HTTP Web Interface
The 9401A is set up using Genelec Loudspeaker Manager GLMTM software,

Figure 6. 9401A setup panel in GLM software

using GLM’s Management Network. Advanced setup is done via an HTTP web interface. The web interface can be accessed by pressing the URL button in GLM settings for the 9401A. Refer to the Web interface function reference for additional information. More information about GLM is available in the SAM System Operating Manual.
Connection
Configuration consists of the following steps:
· Connect the IP network to the primary Ethernet network interface.
· Set up a digital audio stream in the ST2110, AES67 or Ravenna formats.
· Configure the audio source to connect to the 9410A device, for example using the web interface (Web interface function reference) or ANEMAN software.
· Connect `AES OUT 1-8′ to a fan-out cable and continue with XLR-to-XLR cables to each monitor. Please use cables intended for carrying AES/EBU

digital audio. We strongly discourage the use of standard analogue microphone cables as this may reduce system performance. · Connect the ‘SUBWOOFER LINK’ output to the ‘DIGITAL IN’ connector on a Genelec 7300 Series subwoofer. · Connect the `AUX STEREO OUT’ output to stereo monitors or headphones through a digital-to-analog converter and a headphone amplifier. · Connect CAT 5 (RJ45) GLM network cables between the 9401A, every monitor and subwoofer. Finally, connect to the GLM Adapter device (see Figure 2). The connection order of the other devices is not important. Connect the GLM Adapter device to your computer via USB. · Install and run Genelec Loudspeaker Manager (GLM) software.
All devices appear in GLM software monitor stack. Move devices from the monitor stack onto GLM’s honeycomb grid, including the 9401A. You may want to drag and drop

the 9401A icon close to the subwoofer connected to it (see Figure 6).
When using multiple 9401A devices, you can identify a 9401A by clicking the 9401A icon in GLM, causing the associated 9401A device front panel power button light to blink.
Configuration
Configuration of the 9401A using GLM software has the following steps: · Select the Input Signal Type’ for the monitor Group to beAES/EBU Digital’. Then, set the group status to ON state and the 9401A devices become active. · Select the AES/EBU outputs in the 9401A to enable them. Note that you need to configure the audio streams. (see section Setting Up Audio Streams) · Set the AES/EBU Digital Input Mode’ to Multichannel’ in the 7300 series subwoofer settings. · In the `LFE Channel’ drop-down, select the AES output and the subframe that carries the LFE channel audio.

Figure 7. Audio stream setup matrix

· Select the +10 dB’ setting in the subwoofer configuration if the LFE channel audio requires the 10 dB boost in the subwoofer relative to the main audio channels. When all 9401A units in the system are set toGroup Off’ state, the `AES/EBU Digital Input Mode’ in all 7300 series subwoofers switch the AES/EBU digital stereo audio input to a standard stereo audio input.
Setting Up Audio Streams
While GLM is used for managing the LFE and sum channel output, the audio channel mapping is configured using the internal HTTP web interface or by using ANEMAN software or similar.
The web interface can be accessed through GLM, or directly from the browser using the device name. For example, if the name is “9401A_61”, the web interface address is “http://9401a_61.local/advanced”.
In the web interface:
· Open the I/O router tab · On the matrix view, inputs are shown on
the rows and outputs on the columns · Set up streams by selecting input-output
pairs in the matrix · Changes are automatically applied

The 9401A can also be used to route AoIP streams to other compatible devices. Use the Session sources tab to create a new source. Refer to the Web interface function reference for additional information on configuring a source. After the source is created, it can be routed from the I/O router tab as explained above.
Acoustic Calibration
GLM software supports automatic calibration and system alignment of the complete monitoring system.
To acoustically calibrate your setup, attach the measurement microphone included with your SAM Reference Controller or GLM Kit onto a microphone stand so that the microphone points upwards, then place the microphone at the listening position with the microphone top positioned at the listener’s ear height.
Follow the steps in the GLM software to calibrate your entire system. The calibration process starts after you create a new group preset using File’ | New’ menu item. An existing group preset can be calibrated by selecting the Group Preset’ |Calibrate’ menu item.
If you wish to disconnect the computer after calibration, save the GLM calibration onto the monitors, subwoofers and 9401A interfaces in your system. The settings can be stored

using the GLM software menu item `Store’ | ‘Store the Current Group Settings’. Note that monitors and subwoofers have a switch that enables stored settings. This switch must be set to ‘ON’ for operating the system with the stored settings. After removing the GLM network cable and powering the 9401A and all monitors off and on, the stored settings are enabled. We strongly recommend using GLM software and keeping the GLM network connected to access the full flexibility of the monitoring system.
Returning to Factory Settings
GLM settings stored in a 9401A can be erased by keeping the power switch depressed for more than 10 seconds before releasing it again. This returns the 9401A to its factory settings. After this, GLM software should be used to reconfigure the 9401A.
Operating Environment
The 9401A is designed for indoor use only, and the permissible ambient room temperature is 15-35 degrees Celsius (59-95°F) with a relative humidity of 20% to 80% (noncondensing). If the 9401A has been stored or transported in a cool environment before entering a warm room, please wait between 60 minutes before unpacking it, as this will prevent harmful condensation. Sufficient cooling must be

ensured to keep the 9401A within optimal operating temperatures. No minimum clearance for ventilation is needed around the interface.
Maintenance
There are no user serviceable parts inside the 9401A. Maintenance or repair must only be performed by Genelec certified service personnel.
Guarantee
Genelec guarantees the 9401A for two years against manufacturing faults or defects that alter performance. Refer to the reseller for full sales and guarantee terms.
Safety Considerations
The 9401A has been designed in accordance with international safety standards. To ensure safe operation, the following warnings and precautions must be observed:
· Servicing and adjustment must only be performed by Genelec certified service personnel.
· The enclosure must not be opened. · Do not use this product with a mains
cable or mains outlet without a protective earth (potential-equalising) connection, as doing so may result in personal injury. · To prevent fire or electric shock, never expose the unit to water or moisture. · Do not place objects filled with liquid, such as vases, on or near the 9401A. · The 9401A is never completely disconnected from mains power unless the mains cable is removed from the device or the mains outlet.
Compliance to FCC Rules
This device complies with part 15 of the FCC Rules. Operation is subject to both of the following two conditions:
· This device may not cause harmful interference.
· This device must accept any interference received, including interference that may cause undesired operation.
· Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection

against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. There is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try and correct the interference by one or more of the following measures:
· Reorient or relocate the receiving antenna. · Increase the separation between the
equipment and receiver. · Connect the equipment into an outlet on
a circuit different from that to which the receiver is connected. · Consult the dealer or an experienced radio/TV technician for help.
Modifications not expressly approved by the manufacturer can void the user’s authority to operate the equipment under FCC rules.

SPECIFICATIONS Description Network interface Network cable Number of Ethernet ports Digital audio input format Digital audio input specifications Digital audio word length Digital audio sample rate
Digital audio output format
Digital audio output impedance Digital audio output level Maximum AES/EBU cable length End-to-end latency Clock synchronization Conversion accuracy Operating temperature Weight Dimensions
Height: Width: Depth: Mains input voltage Mains tolerance Operating power consumption Idle power consumption ISS state power consumption Operating environment humidity EMC compliance

Feature RJ-45 connector for 1000BASE-T Category 5e (Cat 5e) or higher-rated Ethernet cable 2 ST2110-30, AES67, Ravenna ST2022-7, NMOS IS-04, NMOS IS-05 Minimum 16 bits, maximum 32 bits. AES/EBU outputs maximum 24 bits Minimum 44.1 kHz, maximum 192 kHz. Supports single-wire AES/EBU audio, does not support dual wire AES/EBU audio AES/EBU (AES3-2003) Can also be used with S/P-DIF and AES3id signals when impedance converters are used 110 ohm differential 2.5 Vpp 100 m < 3 ms (dependent on buffer size) Sample accurate Bit perfect 15-35 C (59-95 F) 2 kg (4.4 lbs)
43 mm (1 11/16 in) 483 mm (19 in) 105 mm (4 1/8 in) 100…240 VAC (50…60 Hz) +/- 10 % 12 W 9 W 4.5 W 10-80 % non-condensing FCC part 15 Class B, CE

Web interface function reference

Device Name

General settings

Device name Location
Audio Configuration

Unique name, consists of the model name (9401A) and serial number separated by an underscore.
Optional entry to specify the physical location of the device (e.g., Listening Room).

Sample rate Frame size (@1FS)
Session Sinks Global

Selects the sample rate used for audio streaming, must be matched to the receiver/transmitter sample rate.
Number of samples in an Ethernet packet. Lower values provide lower latencies but require better performance from switches and streaming equipment.

Safety Playout Delay (@1FS)
SSM (requires IGMP v3)
Network

Additional delay that can be added to prevent dropouts or cuts. Value is given in samples which corresponds to the frame size (e.g., a value of 48 adds 1 ms of delay).
Source Specific Multicast, requires a router with IGMP v3 support.

Multi-Interface mode
Interface 1 / Interface 2

Must be checked when using both network interfaces and for ST2022-7 support.

Link
Name Type Address Netmask Gateway Use as Primary Gateway DNS

Up with a green background: the interface is successfully connected to the network.
Down: the interface is not active.
Primary or Secondary, corresponding to the Ethernet connectors on the back of the 9401A.
IP address assignment: Static, automatically assigned using DHCP or service discovery using Zeroconf.
When using type Static, specifies address in IP format using dot-decimal notation.
When using type Static, specifies the subnet mask using dot-decimal notation.
When using type Static, specifies the router default gateway. Default route is 0.0.0.0.
Selects which interface is used as the primary transmission route in ST2022-7 mode.
When using type Static, specifies the Domain Name System (DNS) server IP address.

Global
Type Domain
DSCP
Master
Manual Priority1
Class
Accuracy Priority2
GMID
Slave only Delay mech.
Announce Sync
Status
GMID Lock
Interface 1 / Interface 2
Master / Slave / Listening
GMID
Statistics
Audio clock Network delta

PTP
Indicates if PTP (v1) or PTPv2 is used. PTP domain, must be set to the same value for connected master and slave devices. Differentiated Services Code Point, a 6-bit priority value for Quality of Service (QoS).
If not selected, uses default PTP settings. Selects the priority used for the Best Master Clock (BMC) selection algorithm. Lower values indicate higher priority. Allows assigning different clocks their own classes, each class having their own priority. The difference between the clock and UTC, in nanoseconds Final priority in case it is not definitively decided by above criteria. Lower values indicate higher priority. Unique grandmaster identifier for the clock, constructed from the device’s MAC address. Forces the device to be slave only. Delay measurement mechanism between master or slave, End-to-End (E2E) or Peer-to-Peer (P2P). PTP announcement interval in seconds. PTP synchronization message interval in seconds.
Current PTP Grandmaster ID. PTP lock status. Either Unlocked, Locking or Locked.
Interface PTP status. Listening means the interface is not being used for synchronization. Grandmaster ID of the interface clock.
Regulated difference to the current PTP master. Difference to the current PTP master, before the clock regulation algorithm.

Multicast clock
Auto Address DSCP

ASIO Clock
ASIO clock is activated only on the PTP master. IP address and port of the multicast clock. Differentiated Services Code Point, a 6-bit priority value for Quality of Service (QoS).

Create session
Configuration
Enabled IO Name Description Output Interface(s)
Auto-unicast, retrieve unicast address+port from sink (RTSP) Address
Address sec TTL
Payload Type
Codec
Frame size (samples) DSCP
RefClk PTP traceable
Channels The URL of the SDP of this session is

Session sources
Create a new source.
Enables or disables the source. Selects the input source. For 9401A, this is always Stream. Name of the source, maximum length is 63 characters. Optional entry. Selects the source output. Either Interface 1, Interface 2, or Interfaces 1&2 (ST_2022-7). (Dependent on General settings). Automatically retrieve the sink’s IP address, for Merging Technologies devices. Stream multicast IP address, port can also be specified separated by a colon : Stream multicast IP address for the secondary interface. Time to live, number of hops the IP packet is allowed in the network. Recommended to leave at the default value. RTP payload format. Recommended to leave at the default value. Method for encoding the audio. Either linear 16/24 bits (L16, L24) or DSD (DSD64 – DSD64_32 – DSD128 – DSD128_32 DSD256). Frame size of the source. (Dependent on General settings). Differentiated Services Code Point, a 6-bit priority value for Quality of Service (QoS). Allows sinks from different PTP masters to connect to the source, for example when connecting over the Internet. Number of channels in the stream.. Save the Session Description Protocol file for devices that require manual SDP.

Session sinks

Create session sink
Configuration
IO

Create a new sink. Selects the physical output. For 9401A, this is always Stream.

Label

Name of the sink.

Description

Optional entry.

Source Delay (samples)

Selects the source, either from SAP or mDNS advertisers or manually by copying the SDP file from the source.
Sets the playback delay.

0: Automatically set the delay.

Delays between devices must be matched.

Ignore refclk GMID Allows sinks from different PTP masters to connect to the source, for example when connecting over the Internet. (Dependent on the session sources settings).

Ignore refclk Domain Allows sinks from different PTP clock domains to connect to the source, for example when connecting over the Internet. (Dependent on the session sources settings).

Relaxed check

Allows connection to a source that has less channels than the output.

Channels

Number of channels in the stream.

Session Info

Session status

Yellow background and Started: the sink is attempting to connect to the source.

Green background and Connected: the sink is connected to the source.

Red background: the sink can’t connect to the source, see the message for details.

RTP status

Green background and Receiving: the sink is receiving RTP (audio) packets.

Red background and Muted: the stream is muted, see the Interface RTP status for details.

Yellow background and Degraded: In ST2022-7 mode, one interface is not receiving RTP packets.

Session name Playout delay RTSP Host

Source name from SDP file. Total delay of the sink in samples and milliseconds. The source IP address.

Interface 1 / Interface 2

RTP status

Information about the incoming RTP packets.

0x10: receiving RTP packets.

0x20 / 0x40: stream has been muted.

0x80: both interfaces are not receiving RTP packets properly (ST2022-7 mode).

0x01: wrong RTP sequence id.

0x02: wrong RTP SSRC.

0x04: wrong RTP payload type.

0x08: wrong RTP SAC.

Clock domain

PTP clock type and domain.

Address

Multicast IP address of the sink.

Payload

The payload type, codec, sample rate and number of channels of the stream.

SDP

Show the SDP file of the stream.

Stream status indicator

Description Network offline. Network error. Network receiver error. Network started. Network receive. Network transmit

Ins/Outs

Stream

Inputs

AoIP stream inputs, 64 channels.

Outputs

AoIP stream outputs, 64 channels.

AES

Inputs

Not physically available on the 9401A.

Outputs

Aux stereo out connector on the 9401A.

Main DB25 Connector

Inputs

Not physically available on the 9401A.

Outputs

Main monitor outputs, 16 channels.

Note: Names of the channels can be changed by double-clicking.

Rows Columns Row-column matrix

I/O Router
Session sources as configured in the corresponding page. Session sinks as configured in the corresponding page.
Creates connections between source and sink channels by selecting points in the matrix. Mixing of channels is not supported. (a sink channel can receive from one source channel).

Statistics

Sink

Name of the sink being measured.

Min

The minimum latency measured from Port 1 / Port 2

to output. Does not include latency from source buffer.

Resets after refreshing the web page.

Max

The maximum latency measured from Port 1 / Port 2

to output. Does not include latency from source buffer.

Resets after refreshing the web page.

Graph

Displays the latency data on a graph at 2 s intervals.

Note: The values can be reset by refreshing the page.

NMOS

NMOS General Settings

Enable

Enable or disable NMOS client.

Port

NMOS communication port.

Flush streamer address on disable

When selected, will empty streamer multicast addresses each time the streamer disabled. Allows interoperability with Nevion.

Set UUID from Names

When selected, will set the Universally Unique Identifier from the source name. Source names must be unique in
this case.

Configure Registration Server

Mode

NMOS server communication mode. Either Static Address, Search Domain by providing a network domain, or automatic discovery by mDNS.

Address

When Mode is set to Static Address, specifies the NMOS server IP address.

Search domain

When Mode is set to Search Domain, specifies the DNS domain to search in.

Registration Server

Server Name

NMOS server name provided by the server via DNS or mDNS.

Host

NMOS host name provided by the server via DNS or mDNS.

Address

NMOS server address.

Port

NMOS server port.

Registered

True if registration with the server is successful.

Note: The NMOS must be disabled to change the settings.

Build Number
Build Number
Configuration file
Download Upload
Commands
Reboot Reboot to Factory Restart Save
Debug
Get Report Get Device Status Get Device Engine Status

System
Currently installed firmware version.
Save device configuration to a file. Save device configuration from a file.
Reboot the AoIP module. For applying settings. Reboot the AoIP module to factory default values. Fully restart the AoIP module. Save the current configuration.
Generates a debug report. Display the device status. Display the device engine status.

Device selection drop-down menu
Vendor Product Serial Identify Me

Static top panel
When multiple devices exist in the same network, can be used to change between their WebApps.
Device vendor name. (Genelec)
Device name. (9401A)
Serial number of the device.
When using multiple devices, can be used to identify which device is being configured. When checked, the 9401A flashes its power button LED.

Genelec 9401A Multichannel Audio-Over-IP Interface

Genelec Document D0207R001. Copyright Genelec Oy 4.2024. All data subject to change without prior notice

International enquiries: Genelec, Olvitie 5 FIN-74100, Iisalmi, Finland Phone +358 17 83881 Fax +358 17 812 267 Email genelec@genelec.com

In the U.S. please contact: Genelec, Inc., 7 Tech Circle
Natick, MA 01760, USA Phone +1 508 652 0900 Fax +1 508 652 0909 Email genelec.usa@genelec.com

In China please contact:
Beijing Genelec Audio Co.Ltd Room 101, Building B33, Universal Business Park, No.10 Jiuxianqiao Road,
Chaoyang District,
100015 Beijing, China Phone +86 (10) 5823 2014 +86 400 700 1978 Email genelec.china@genelec.com

www.genelec.com

In Japan, please contact: Genelec Japan Inc. 2-22-21 Akasaka, Minato-ku 07-0052, Tokyo Phone +81-3-6441-0591 genelec.japan@genelec.com Email genelec.japan@genelec.com

In Sweden please contact Genelec Sverige Tureholmsvägen 12 125 35 Älvsjö Sweden Phone +46 8 449 5220 Email sweden@genelec.com

References

• World Leader in Studio Monitors - Genelec.com

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