Conferencing Processor with AEC and VoIP

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The Soundweb London BLU-103 offers a fixed configuration of 8 analog inputs and 8 analog outputs, a Voice over IP (VoIP) interface, configurable signal processing, AEC processing, and a high bandwidth, fault tolerant digital audio bus.

The VoIP port enables the BLU-103 to interface with two VoIP (SIP v2.0 or later) lines.

The BLU-103 contains dedicated AEC processing for up to 8 independent AEC algorithms. The AEC algorithm can be applied to signals coming from the local analog inputs or from the digital audio bus. 8 individual AEC references (one per algorithm) allow the user to provide a solution for multiple conferencing spaces using a single device.

Automatic Gain Control (AGC) and Noise Cancellation (NC) are also provided per AEC algorithm. AGC ensures that microphone levels remain at an optimum level, and NC removes steady state noise (such as from a projector fan or air conditioning device) from the signal path.

This processor features a low latency, fault tolerant digital audio bus of 48 channels which uses standard Category 5e cabling giving a distance of 100m between compatible devices. Fiber media converters can be used to increase the distance between devices to over 40km.

The BLU-103 is compatible with the entire Soundweb London family and its 48 channel digital audio bus represents channels 1-48 of the larger 256 channel digital audio bus when integrated with the BLU-806, BLU-805, BLU-800, BLU-326, BLU-325, BLU-320, BLU-160, BLU-120, BLU-BIB and BLU-BOB devices.

Analog Inputs provide software configurable gain in 6dB steps up to +48dB per channel and software selectable Phantom Power per channel.

Phantom Power, Signal Present and Clip information per channel is easily accessible, without the requirement for a PC, from clear front panel LED indication. A bi-directional locate function allows devices to be identified both from and within HiQnet Audio Architect™.

12 Control Inputs and 6 Logic Outputs allow the BLU-103 to be integrated with GPIO compatible devices. The Soundweb London Interface Kit, comprehensive documentation which details how Soundweb London systems can be integrated with third party control systems, is included within the installation of HiQnet Audio Architect.

The BLU-103 and the other members of the Soundweb London family provide the building blocks of the perfectly tailored system solution.


  • 8 Analog Inputs (with 48v Phantom Power per Channel)
  • 8 Analog Outputs
  • VoIP Port
  • Configurable Signal Processing
  • 8 Channels of AEC Processing with Auto Gain Control and Noise Cancellation
  • Rich Palette of Processing and Logic Objects
  • 48 Channel, Low Latency, Fault Tolerant Digital Audio Bus
  • Clear Front Panel LED Indication
  • Bi-Directional Locate Functionality
  • 12 Control Inputs and 6 Logic Outputs for GPIO Integration
  • Soundweb London Interface Kit for Third Party Control System Integration (Documentation)
  • HiQnet Device
  • Configuration, Control and Monitoring from HiQnet Audio Architect


  Version Language Size Uploaded
BLU-103 Cut Sheet
updated: Aug 20, 2021
    200 KB Aug 20, 2021
BLU-103 Install Guide-English
en updated: Sep 18, 2021
  en  1.6 MB Sep 18, 2021
Cisco CallManager Configuration for BLU-103
updated: Aug 19, 2021
    1.41 MB Aug 19, 2021
VoIP Setup Sheet for BLU-103
updated: Aug 19, 2021
    53.9 KB Aug 19, 2021
Avaya Aura Communication Manager Configuration for BLU-103
updated: Aug 19, 2021
    997 KB Aug 19, 2021
HiQnet Audio Architect
updated: Jul 25, 2017
    358 MB Jul 25, 2017
HiQnet Motion Control
updated: Nov 01, 2016
    Nov 01, 2016
HiQnet London Architect
version 6.00.R5, updated: Jul 25, 2017
6.00.R5     117 MB Jul 25, 2017
Application Guides
Using the BLU-103
updated: Mar 24, 2016
    1.55 MB Mar 24, 2016
3rd Party Resources
Soundweb London Third Party Control Application Guide
updated: Sep 23, 2016
    568 KB Sep 23, 2016
Soundweb London DI Tool
updated: Oct 08, 2015
    440 KB Oct 08, 2015
Soundweb London DI Kit
updated: Oct 07, 2015
    1.61 MB Oct 07, 2015
AMX Soundweb London module v2.2
updated: Aug 27, 2015
    1.75 MB Aug 27, 2015
AMX HPro BSS Gateway Comm
version 1.0.15, updated: Jun 04, 2021
1.0.15    25.1 MB Jun 04, 2021
AMX BSS NetLinx Module
updated: Jun 04, 2021
    5.03 MB Jun 04, 2021
Crestron Soundweb London module v1.1
updated: Jun 03, 2021
    35.4 MB Jun 03, 2021
Crestron BSS London
version 5.4, updated: Jun 04, 2021
5.4    4.64 MB Jun 04, 2021

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Chassis 19" (single rack space)
Custom I/O (card based) no
Analog Inputs 8
Digital Inputs 0
AEC Inputs 8
Analog Outputs 8
Digital Outputs 0
VoIP Connection 1
Max Inputs/Outputs fixed
Config Software
LCD Display no
Logic Processing yes
RS-232 yes
GPIO yes
Signal Processing (MHz) 400
Cobranet no
SWL Digital Audio Bus 48
AVB no
Dante no