Sonifex AVN-TB20AR 20 Button Advanced Talkback Intercom, AoIP Rackmount Portal

The AVN-TB20AR is a 2U rackmount 20 button version of the AVN-TB10AR with the same specification, but more station buttons allowing greater communication for larger facilities. It also has ‘GPI/O’ and ‘Phone’ buttons for remote control of external equipment and Sonifex DHY-04 telephone hybrids, useful in an OB truck or production gallery.

Key Features

• 20 illuminated key-cap Talk buttons plus Listen & Page buttons
• Phone button for remote dialling and control of an external telephone hybrid
• Page button and Group Talk facilities
• Callback button with callback source display
• Three user definable buttons
• Speaker & microphone mute buttons
• Mic & headset inputs (front & rear panel headset connection), headphone & speaker outputs
• Front panel volume control which operates on speaker/headphone outputs and incoming source levels
• +48V phantom power for the mic inputs
• Ethernet webserver and front panel control & configuration
• Front panel display providing source & destination information
• Sources from AoIP, 1 x balanced, 2 x unbalanced or S/PDIF digital inputs
• Destinations to AoIP or rear panel balanced & unbalanced outputs
• Advanced echo cancellation & mic AGC to prevent acoustic feedback
• Dual 1Gb lan ports & 1Gb SFP fibre port
• 10 user assignable GPIO ports
• GPI/O button for triggering external events, via physical GPIO or network commands
• Front panel LEDs for network audio presence, Talk activity, AGC activity, clock sync and power supply activity
• Two front panel monitor buttons for routing audio directly to the speaker e.g. to take an IFB feed or off-air transmission signal
• Ducking or mixing of inputs to speaker/headphones
• Dual AC & DC power supply inputs

Technical Specifications

Audio-Over-IP
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
Maximum Streams
RX 25, TX 5 (fixed)
Sample Rate
48 kHz
Timing Synchronisation
Profile Support
Default, media & custom profiles
Timing Protocol
PTPv2, IEEE1588-2008
Microphone and Headset Input
Input Impedance
>2.5kohms 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=200ohms ref. 76dB gain
Unbalanced Line Inputs
Input Impedance
>20kohms
0dBFS Line-Up
+12dBu
Frequency Response
20Hz to 20kHz, +0/-0.2dB
THD+N
<-97dBFS, -30dBFS, 20Hz to 20kHz, unity gain, 20kHz BW
Noise
-100dBFS, 20kHz BW, Rs=200ohms
Crosstalk
<-97dB
Balanced Line Inputs
Input Impedance
>20kohms balanced
0dBFS Line-Up
Adjustable +15/+18/+20/+22/ +24dBu
Frequency Response
20Hz to 20kHz, +0/-0.2dB
THD+N
<-110dBFS, -30dBFS, 20Hz to 20kHz, 20kHz BW
Noise
-110dBFS, 20kHz BW, Rs=200ohms
Crosstalk
<-100dB
Common Mode Rejection
>70dB @ 1kHz
Headphone Output
Output Impedance
Drives 150mW into 32OHMS to 600OHMS 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
Unbalanced Line Outputs
Output Impedance
<50ohms
0dBFS Line-Up
+12dBu
Frequency Response
20Hz to 20kHz, +0/-0.2dB
THD+N
<-95dBFS, -30dBFS, 20Hz to 20kHz, unity gain, 20kHz BW
Noise
-100dBFS, 20kHz BW
Balanced Line Outputs
Output Impedance
<50ohms balanced
0dBFS Line-Up
Adjustable +15/+18/+20/+22/ +24dBu
Frequency Response
20Hz to 20kHz, +0/-0.2dB
THD+N
<-110dBFS, -30dBFS, 20Hz to 20kHz, 20kHz BW
Noise
-110dBFS, 20kHz BW, Rs=200ohms
Loudspeaker
Power Output
4W
Volume
Mute to full volume via front panel control
Connections
Microphone
XLR-3 pin female (electronically balanced)
Headphone
inch (6.35mm) stereo jack socket
Headset
2 x XLR-5 pin female (front/rear electronically balanced input)
Audio Inputs
2 x unbalanced stereo, RCA phono
1 x S/PDIF, RCA phono
Audio Outputs
1 x balanced stereo, RJ45
1 x unbalanced stereo, 2 x RCA phono
1 x loudspeaker output
Audio Input/Output
1 x balanced stereo input or mono input/output, RJ45
GPIO
15-way ‘D’-type socket
Network
2 x gigabit Ethernet, RJ45
1 x SFP fibre
Mains AC Input
Universal filtered IEC, continuously rated 85-264VAC, 47-63Hz, 20W
DC Input
4 pin 7.5A power jack socket, 9.5-14VDC
Fuse Rating
Anti-surge fuse 2A 20mm x 5mm
Physical
Dimensions: (Raw)
48.3cm (W) x 17.5cm (D) x 8.8cm (H)(2U)
19” (W) x 6.9” (D) x 3.6” (H) (2U)
Dimensions (Boxed)
59cm (W) x 28cm (D) x 15cm (H)
23” (W) x 11” (D) x 5.9” (H)
Weight
Nett: 3.7kg Gross: 4.4kg
Nett: 8.1lbs Gross: 9.7lbs