I/O Expander with Digital Audio Bus and CobraNet™

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The Soundweb London BLU-320 offers configurable I/O, CobraNet audio, and a high bandwidth, fault tolerant digital audio bus.

The BLU-320 is configurable through HiQnet™ London Architect. A rich palette of logic objects and a “drag and drop” method of configuration provide a simple and familiar design environment.

This processor features CobraNet audio with primary and secondary ports for fault tolerance. Control is through a separate Ethernet port which allows CobraNet and control networks to be easily separated or mixed depending upon requirements.

The BLU-320 also features a low latency, fault tolerant digital audio bus of 256 channels which uses standard Category 5e cabling giving a distance of 100m between compatible devices. Fiber optic media converters can be used to increase the distance between devices to over 40km.

Four card slots which accommodate analog inputs, analog outputs, digital inputs and digital outputs in banks of four facilitate many different device I/O configurations.

Analog Input Cards provide software configurable gain in 6dB steps up to +48dB per channel and software selectable Phantom Power per channel. Digital Input Cards and Digital Output Cards process AES/EBU and/or S/PDIF audio and offer a variety of clocking and syncing options. (Further information about the I/O cards can be found on dedicated datasheets)

Phantom Power, Sync, Signal Present and Clip information per channel is easily accessible, without the requirement for a PC, from clear front panel LED indication. Device-specific information such as Device Name, Device Type, Firmware Version Number, Time, IP Address and Subnet Mask is available from the front panel display. A bi-directional locate function allows devices to be identified both from and within HiQnet London Architect.

12 Control Inputs and 6 Logic Outputs allow the BLU-320 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 London Architect.

The BLU-320 and the other members of the Soundweb London family provide the building blocks of the perfectly tailored system solution.

More Details

Fiber Optic Media Converter Recommendation:

BSS Audio MC-1

JBL VerTec V4 DSP Preset Data is available from the V4 Preset Data Download Page on

V4 Preset Data Download Page


  • Four Input / Output Card Slots
  • Configurable Inputs / Outputs
  • Analog Inputs (with Phantom Power per Channel)
  • Analog Outputs
  • Digital Inputs (AES/EBU and S/PDIF)
  • Digital Outputs (AES/EBU and S/PDIF)
  • AEC Inputs (with Phantom Power per Channel)
  • Telephone Hybrid Card
  • Rich Palette of Logic Objects
  • CobraNet Audio
  • 256 Channel, Low Latency, Fault Tolerant Digital Audio Bus
  • Clear Front Panel LED Indication
  • Informative Front Panel Display
  • 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 London Architect




Chassis 19" (single rack space)
Custom I/O (card based) yes
Analog Inputs up to 16
Digital Inputs up to 16
AEC Inputs up to 16
Analog Outputs up to 16
Digital Outputs up to 16
Telephone Connection up to 4
Max Inputs/Outputs 16
Config Software
LCD Display yes
Logic Processing yes
RS-232 yes
GPIO yes
Signal Processing (MHz) no
Cobranet yes
SWL Digital Audio Bus 256
AVB no
Dante no




I/O Expander with Digital Audio Bus and CobraNet™