BSS Soundweb London BLU-102 Conferencing Processor with AEC and Telephone Hybrid

The BSS Soundweb London BLU-102 is a professional digital audio conferencing processor designed for meeting rooms, boardrooms, training facilities, and integrated AV systems requiring clear speech, acoustic echo cancellation, and flexible audio routing.

Featuring 10 balanced analog inputs, 8 balanced analog outputs, and 8 independent channels of acoustic echo cancellation (AEC), the BLU-102 helps eliminate distracting echo during audio and video conferences while providing extensive signal processing for microphones, loudspeakers, and conferencing equipment.

Unlike standard audio processors, the BLU-102 also includes a built-in analog telephone hybrid with an RJ-11 connection, allowing compatible traditional telephone systems to be integrated into a conference room audio system without requiring a separate telephone interface.

The processor uses BSS Soundweb London's open-architecture DSP platform, allowing system designers to configure signal routing, mixing, audio processing, and control functions using HiQnet Audio Architect software.

A built-in 48-channel BLU link digital audio bus enables low-latency audio distribution between compatible Soundweb London processors, making the BLU-102 suitable for both standalone conferencing rooms and larger networked AV installations.

BSS BLU-102 Key Features

• 10 Balanced Analog Inputs: Supports microphone and line-level sources using removable terminal-block connections.
• 8 Balanced Analog Outputs: Provides flexible audio distribution to amplifiers, conferencing equipment, recording systems, and other audio devices.
• 8 Independent AEC Channels: Acoustic echo cancellation helps prevent loudspeaker audio from being retransmitted through conference microphones.
• Automatic Gain Control (AGC): Helps maintain consistent microphone levels for clearer communication.
• Noise Cancellation: Reduces steady background noise such as HVAC systems and projector fans.
• Built-In Telephone Hybrid: RJ-11 telephone interface supports compatible analog POTS/PSTN or analog PBX telephone connections.
• 48-Channel BLU link Audio Bus: Distributes digital audio between compatible Soundweb London devices.
• Open-Architecture DSP: Configurable signal processing and logic functions accommodate custom conferencing requirements.
• 48V Phantom Power: Individually selectable for each analog input to support compatible condenser microphones.
• Software-Selectable Input Gain: Adjustable from 0 to +48 dB in 6 dB steps.
• HiQnet Audio Architect Configuration: Software-based system design, control, and monitoring.
• 12 Control Inputs and 6 Logic Outputs: Provides integration with external controls and automation systems.
• Ethernet and RS-232 Control: Supports processor configuration and integration with compatible control equipment.
• Front-Panel Status Indicators: Displays input signal, clipping, phantom power, telephone status, and system activity.
• 1RU Rackmount Chassis: Fits standard 19-inch professional equipment racks.

Eight Channels of Acoustic Echo Cancellation

Acoustic echo is a common problem in conference rooms when audio from remote participants plays through local loudspeakers and is picked up again by microphones.

The BLU-102 addresses this problem with eight independent acoustic echo cancellation algorithms, allowing system designers to apply AEC processing to microphone signals from the processor's analog inputs or compatible BLU link sources.

Each AEC channel supports an independent reference signal, providing flexibility for installations with multiple conferencing spaces or different loudspeaker feeds.

The integrated AEC processing also includes Automatic Gain Control and Noise Cancellation to improve speech consistency and reduce steady background noise.

This combination helps remote participants hear conversations more clearly and reduces the distractions caused by echo and environmental noise.

Integrated Analog Telephone Hybrid

The BSS BLU-102 includes an integrated telephone hybrid designed to connect compatible analog telephone services directly to the conferencing audio system.

Its RJ-11 telephone interface supports traditional POTS/PSTN telephone networks and compatible analog PBX connections.

This allows an installer to integrate telephone conferencing with room microphones, loudspeakers, and additional audio sources through the processor's configurable DSP architecture.

The telephone hybrid is particularly useful for facilities that continue to operate analog telephone conferencing infrastructure.

Compatibility Note: The RJ-11 telephone interface is intended for compatible analog telephone connections. SIP and other IP-based telephone services require appropriate external interface equipment.

Flexible Audio Processing and Routing

The BLU-102 uses an open-architecture DSP design, allowing integrators to build processing configurations tailored to individual conferencing applications.

Using HiQnet Audio Architect software, system designers can configure microphone mixing, signal routing, level control, equalization, dynamics processing, and logic functions as required by the installation.

This flexibility makes the processor useful for boardrooms, divisible meeting spaces, lecture facilities, and integrated conferencing systems with multiple audio destinations.

Its 10 analog inputs and 8 analog outputs provide connectivity for local microphones, audio playback equipment, amplifiers, recording devices, and compatible conferencing interfaces.

48-Channel BLU link Digital Audio Networking

The BLU-102 includes BSS Soundweb London's proprietary 48-channel BLU link digital audio bus.

BLU link allows compatible Soundweb London processors to exchange digital audio with low latency, reducing the need for multiple analog audio connections between devices.

Standard Category 5e cable supports connections of up to 100 meters between compatible BLU link devices.

The bus also supports fault-tolerant ring configurations for installations requiring additional system resilience.

When connected to compatible Soundweb London equipment with a larger BLU link bus, the BLU-102 accesses channels 1–48.

Important: BLU link is a proprietary digital audio transport system. It is not a Dante audio interface.

System Control and Integration

The BSS BLU-102 is designed for integration into professionally installed AV systems.

HiQnet Audio Architect software provides tools for configuration, monitoring, and system control.

The processor also includes 12 control inputs and 6 logic outputs, along with RS-232 and Ethernet connectivity, allowing integration with compatible third-party control systems.

Front-panel LED indicators provide convenient access to essential status information without requiring a connected computer.

BSS Soundweb London BLU-102 Technical Specifications

Specification	Details
Manufacturer	BSS Audio by HARMAN
Product Model	Soundweb London BLU-102
Product Type	Digital conferencing processor with AEC and telephone hybrid
Analog Inputs	10 electronically balanced
Analog Outputs	8 electronically balanced
Analog I/O Connectors	Removable Phoenix/Combicon terminal blocks
Acoustic Echo Cancellation	8 independent AEC channels
AEC Tail Length	200 ms
AEC Processing Latency	Approximately 49.69 ms at 48 kHz
AEC Additional Processing	Automatic Gain Control and Noise Cancellation
Telephone Interface	1 RJ-11 analog telephone port
Telephone Compatibility	POTS/PSTN or compatible analog PBX
Telephone Frequency Response	300 Hz–3.3 kHz
Telephone THD	Less than 0.3%
Analog Input Gain	0 to +48 dB in 6 dB steps
Input Impedance	3.0 kΩ
Maximum Analog Input Level	+20 dBu at 0 dB input gain
Input Frequency Response	20 Hz–20 kHz (±0.5 dB)
Input Dynamic Range	111 dB A-weighted
Common Mode Rejection Ratio	Greater than 75 dB at 1 kHz
Phantom Power	48V, individually selectable per input
Maximum Analog Output Level	+19 dBu
Output Frequency Response	20 Hz–20 kHz (+0.5/−1 dB)
Output THD	Less than 0.01%
Output Dynamic Range	108 dB typical, unweighted
Digital Audio Bus	48-channel BLU link
BLU link Cabling	Category 5e
BLU link Cable Distance	Up to 100 m between compatible devices
Control Inputs	12
Logic Outputs	6
Control Interfaces	Ethernet and RS-232
Configuration Software	HiQnet Audio Architect
Signal Processing	Open-architecture DSP
Rackmount Size	19-inch, 1RU
Power Requirement	100–240 VAC, 50/60 Hz
Power Rating	50W

Recommended Applications

• Corporate Boardrooms: Acoustic echo cancellation and microphone processing for executive meetings.
• Video Conferencing Rooms: Improved speech clarity and reduced acoustic echo during remote meetings.
• Training and Education Facilities: Flexible microphone routing and processing for instructional spaces.
• Conference Centers: Integrated conferencing audio with multiple microphones and output destinations.
• Government and Municipal Meeting Rooms: Professional speech processing and telephone conferencing integration.
• Multi-Room AV Systems: Audio distribution and processing using compatible Soundweb London BLU link devices.
• Facilities with Analog Telephone Systems: Built-in telephone hybrid for compatible traditional telephone conferencing connections.

Why Buy the BSS BLU-102 from Audio Supply?

Audio Supply offers professional BSS Soundweb London processors with competitive pricing and knowledgeable product support. We can help you identify compatible Soundweb London equipment and determine the right audio processing solution for your conferencing installation.

Need Compatible BSS Soundweb London Equipment?

The BLU-102 can be integrated with compatible BSS Soundweb London processors and BLU link audio expansion devices.

Contact Audio Supply for assistance selecting compatible processors, audio interfaces, and control accessories for your conferencing system.