Q561 IP Audio Encoder

Q561 IP Audio Encoder
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The Q561 IP Audio Encoder is the benchmark for high-end Audio Encoding.
Based on the proven Qbit platorm, our device provides highest signal quality, service without compromises and great build quality.
Up to 8 digital stereo channels (or 4 analog) can be encoded simultaneously to be put out as elementary streams via IP.
Each channel can be configured individually (e.g. compression algorithm, bit rate, stereo mode, etc.)

The transmission of ancillary data and switching contact information (GPIO) is possible with the default interfaces..


Audio Input:

Digital: AES/EBU, electrical, XLR (IEC958)
Analogue: XLR, electronically balanced, level range 0 .. +18 dBu (adjustable in 0.5 dB steps)
A/D converter: 24 bits

Audio Encoding:

ISO/IEC 11172-3, 13818-3 MPEG-1/-2 Layer II
ISO/IEC 13818-7 MPEG-2 AAC
Enhanced apt-X®
Linear PCM, up to 24 bits/sample
All allowed bitrates as defined in the respective standards
Sampling Rate:
32 kHz, 48 kHz

Audio Frequency Range (analogue):

20 Hz .. 20 kHz, ± 0.3 dB


Ancillary Data:

Private stream inside the MPEG-2 transport stream, or embedded in MPEG audio data
Transparent, UECP, other formats upon request
RS.232 (Sub-D25 pin connector,1200 .. 38400 bits/sec) via optional SUB-D 9breakout cable or via IP interface

Transport Protocols:

Over IP:
  • Streaming of elementary streams compliant to RFC3550/3551, RFC3016, RFC3640, EBU-TECH 3326

Network Interfaces:

  • 2 separate Ethernet interfaces (IEEE 802.3, RJ45) for data (IP streaming) and control (HTTP, SNMP, ancillary data), optical interfaces (1000 Base-X, 100 Base-FX) available
  • E1 (G.703, G.704)
  • X.21 (synchronous serial interface)

  • 4 outputs (relay contacts)
  • 8 inputs (photo couplers, 5 .. 24V)

System Configuration, Control and Monitoring:
  • via Ethernet by accessing the on-system HTTP web server with any internet browser
  • via Ethernet using SNMP
  • via the front-panel keyboard and display


Supply voltage: 100 .. 240V +- 10%, 50 .. 60Hz
Optional: -48V DC
Integrated switching power supply

Power Supply Redundancy Option:

The optional power supply redundancy has the following features:
  • Measurement of power supply voltages, values are provided via web GUI or SNMP
  • SNMP trap generation on power supply fail
  • Activation of switching contacts on power supply
  • Automatic switch-over in case of power supply fail


19" rack mount cabinet, 1U (1RU)
483 mm x 360 mm x 44 mm
Weight: 3,5 kg


Working temp. 0°C to 45°C
Storage temp. –20°C to 70°C
Humidity 20% to 90% none condensing

Ordering Options for Audio Inputs / Outputs:

  • up to 8 stereo channels (digital AES/EBU)
  • up to 4 stereo channels (analogue and digital AES/EBU)


Q561 IP Audio Encoder (Datasheet., PDF, English)

Q561 IP Audio Encoder (Datenblatt, PDF, Deutsch)

Q561 IP Audio Encoder

This Product was added to our catalogue on Friday 27 August, 2010.