Sonifex AVN-TB20AR 20 Button Advanced Talkback Intercom, AoIP Rackmount Portal
TheAVN-TB20AR is a 2U rackmount 20 button version of the AVN-TB10AR with the samespecification, but more station buttons allowing greater communication forlarger facilities. It also has ‘GPI/O’ and ‘Phone’ buttons for remote controlof external equipment and Sonifex DHY-04 telephone hybrids, useful in an OBtruck or production gallery.
Key Features
- 20illuminated key-cap Talk buttons plus Listen & Page buttons
- Phone buttonfor remote dialling and control of an external telephone hybrid
- Page buttonand Group Talk facilities
- Callbackbutton with callback source display
- Three userdefinable buttons
- Speaker& microphone mute buttons
- Mic &headset inputs (front & rear panel headset connection), headphone &speaker outputs
- Front panelvolume control which operates on speaker/headphone outputs and incoming sourcelevels
- +48V phantompower for the mic inputs
- Ethernetwebserver and front panel control & configuration
- Front paneldisplay providing source & destination information
- Sources fromAoIP, 1 x balanced, 2 x unbalanced or S/PDIF digital inputs
- Destinationsto AoIP or rear panel balanced & unbalanced outputs
- Advancedecho cancellation & mic AGC to prevent acoustic feedback
- Dual 1Gb lanports & 1Gb SFP fibre port
- 10 user assignableGPIO ports
- GPI/O buttonfor triggering external events, via physical GPIO or network commands
- Front panelLEDs for network audio presence, Talk activity, AGC activity, clock sync andpower supply activity
- Two frontpanel monitor buttons for routing audio directly to the speaker e.g. to take anIFB feed or off-air transmission signal
- Ducking ormixing of inputs to speaker/headphones
- Dual AC& DC power supply inputs
TechnicalSpecifications
Audio-Over-IP
Open Standards
RAVENNA,AES67
Device Discovery
Bonjour(mDNS / DNS-SD)
Audio Delivery
RTP/UDP overIPv4 multicast
QoS
DiffServ
Stream Management
RTSP/SDP
Control
Ember+/webserver
Format
Linear PCM24-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
>2.5kohmsbalanced
Gain Range
0dB to +60dB
0dBFS Line-Up
Adjustablein steps of 3dB from -58dBu to +2dBu
Frequency Response
20Hz to20kHz, +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 to20kHz, +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
>20kohmsbalanced
0dBFS Line-Up
Adjustable+15/+18/+20/+22/ +24dBu
Frequency Response
20Hz to20kHz, +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 150mWinto 32OHMS to 600OHMS headphones
0dBFS Line-Up
+20dBu
Frequency Response
20Hz to20kHz, +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 to20kHz, +0/-0.2dB
THD+N
<-95dBFS,-30dBFS, 20Hz to 20kHz, unity gain, 20kHz BW
Noise
-100dBFS,20kHz BW
Balanced Line Outputs
Output Impedance
<50ohmsbalanced
0dBFS Line-Up
Adjustable+15/+18/+20/+22/ +24dBu
Frequency Response
20Hz to20kHz, +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 fullvolume via front panel control
Connections
Microphone
XLR-3 pinfemale (electronically balanced)
Headphone
inch(6.35mm) stereo jack socket
Headset
2 x XLR-5pin female (front/rear electronically balanced input)
Audio Inputs
2 xunbalanced stereo, RCA phono
1 x S/PDIF,RCA phono
Audio Outputs
1 x balancedstereo, RJ45
1 xunbalanced stereo, 2 x RCA phono
1 xloudspeaker output
Audio Input/Output
1 x balancedstereo input or mono input/output, RJ45
GPIO
15-way‘D’-type socket
Network
2 x gigabitEthernet, RJ45
1 x SFPfibre
Mains AC Input
Universalfiltered IEC, continuously rated 85-264VAC, 47-63Hz, 20W
DC Input
4 pin 7.5Apower jack socket, 9.5-14VDC
Fuse Rating
Anti-surgefuse 2A 20mm x 5mm
Physical
Dimensions: (Raw)
48.3cm (W) x17.5cm (D) x 8.8cm (H)(2U)
19” (W) x6.9” (D) x 3.6” (H) (2U)
Dimensions (Boxed)
59cm (W) x28cm (D) x 15cm (H)
23” (W) x11” (D) x 5.9” (H)
Weight
Nett: 3.7kgGross: 4.4kg
Nett: 8.1lbsGross: 9.7lbs








