The AVN-TB6 is a 6 channel talkback intercom control unit from the Sonifex AVN range of IP based products. The AVN-TB6 is a freestanding version which can be rackmounted with the AVN-TB6RK 1U rack kit. There is also a desktop version, the AVN-TB6D which can be fitted flush into a work surface if required. Both models offers similar functionality. This unit provides broadcast quality audio communication between studios, offices and different areas in a facility or building complex, using RAVENNA/AES67 as the transport mechanism, allowing simple CAT 5 cabling and expansion. RAVENNA (of which AES67 is a subset) allows for the distribution of audio across a network. The AVN range use RAVENNA as the communication method providing compatibility with other AES67 systems.
Product Features
6 illuminated key-cap Talk buttons plus Listen & Page buttons.
Dual 1Gb Ethernet & 1Gb SFP port.
Mic & headset inputs, headphone & speaker outputs with volume control.
Loudspeaker & Mic Mute buttons.
Dual AC & DC power supply inputs.
Advanced echo cancellation & mic AGC to prevent acoustic feedback.
10 user assignable GPIO ports.
Responsive design Ethernet webserver.
AVN-TB6RK 19” rack kit available.
Typical Applications
OB truck comms, theatre comms, inter-studio comms in a TV or radio station.
Product Category
Talkback, Intercom & Control
Technical Specifications
Audio-Over-IP Specification
Open Standards: RAVENNA, AES67
Device Discovery: Bonjour (mDNS / DNS-SD)
Audio Delivery: RTP/UDP over IPv4 multicast
QoS: DiffServ
Stream Management: RTSP/SDP
Control: Ember+/Webserver
Format: Linear PCM 24-bit (L24)
Channels Per Stream: 2
Frames Per Packet: 48
Transit Streams: 1 (fixed)
Sample Rate: 48 kHz
Ember+ Interface Connection
Interface Type: Provider
Network Interface: Ethernet port and AoIP port
Port: 9000
Timing Synchronisation
Profile Support: Default, AES67 Media & Custom profiles
Timing Protocol: PTPv2, IEEE1588-2008
Microphone and Headset Input
Input Impedance: > 2.5kΩ balanced
Gain Range: 0dB to +60dB
0dBFS Line-Up: Adjustable in steps of 3dB from -58dBu to +2dBu
Frequency Response: 20Hz to 20kHz, +0/-0.2dB
Noise: -127dBu, 20kHz BW, Rs=200Ω ref. 76dB gain
Headphone Output
Output Impedance: Drives 150mW into 32Ω to 600Ω headphones
0dBFS Line-Up: +20dBu
Frequency Response: 20Hz to 20kHz, +0/-0.2dB
THD+N: < -108dBFS, -30dBFS, 20Hz to 20kHz, unity gain, 20kHz BW
Noise: -110dBFS, 20kHz BW
Loudspeaker
Power Output: 4W
Volume: Mute to full volume via front panel control
