BSS Audio BLU-101 - 12-Input/8-Output Networked Signal Processor with 12 Independent AEC Algorithms and BLU Link

The BSS Audio BLU-101 is a highly versatile and powerful networked signal processor that combines 12 analog inputs, 8 analog outputs, and 12 channels of dedicated Acoustic Echo Cancellation (AEC) processing, making it an ideal solution for complex audio installations and conferencing systems. As part of the Soundweb London family, the BLU-101 offers fully configurable signal processing within an open architecture that can be tailored to meet specific application needs. The processor is configured through HiQnet Audio Architect, which provides a user-friendly drag-and-drop design environment, complete with a rich palette of processing and logic objects. This flexibility allows audio professionals to create customized audio systems that meet the demands of various environments.

One of the standout features of the BLU-101 is its dedicated AEC processing, which supports up to 12 independent AEC algorithms. These algorithms can be applied to signals from either the local analog inputs or the digital audio bus, making the BLU-101 capable of handling multiple conferencing spaces within a single device. The AEC processing is further enhanced by Automatic Gain Control (AGC) and Noise Cancellation (NC), ensuring that microphone levels remain optimal while eliminating steady-state noise from sources such as projectors or air conditioning systems.

The BLU-101 also features a 48-channel, low-latency, fault-tolerant digital audio bus that utilizes standard Category 5e cabling, allowing for distances of up to 100 meters between compatible devices. For longer distances, fiber media converters can be used to extend the range to over 40 kilometers. The BLU-101 is fully compatible with other members of the Soundweb London family, and its 48-channel digital audio bus represents channels 1-48 of the larger 256-channel bus when integrated with devices such as the BLU-800, BLU-320, BLU-160, BLU-120, BLU-BIB, and BLU-BOB.

The 12 analog inputs on the BLU-101 offer software-configurable gain in 6dB steps up to +48dB per channel, along with software-selectable phantom power. Clear front panel LED indicators provide immediate access to information about phantom power, signal presence, and clipping, without the need for a PC. Additionally, a bi-directional locate function allows users to identify devices both from and within the HiQnet Audio Architect software, streamlining system management.

For added flexibility, the BLU-101 includes 12 control inputs and 6 logic outputs, enabling integration with GPIO-compatible devices. The Soundweb London Interface Kit, included within the HiQnet Audio Architect installation, provides comprehensive documentation on integrating Soundweb London systems with third-party control systems. With its combination of configurable signal processing, AEC capabilities, and flexible control options, the BLU-101 serves as a reliable and scalable building block for creating perfectly tailored audio solutions in a variety of professional settings.

Features

• 12 analog inputs with software-configurable gain and selectable phantom power per channel.
• 8 analog outputs for versatile audio routing and processing.
• 12 channels of dedicated AEC processing with Automatic Gain Control (AGC) and Noise Cancellation (NC).
• Open architecture with configurable signal processing through HiQnet Audio Architect.
• 48-channel, low-latency, fault-tolerant digital audio bus for seamless system integration.
• Compatible with the entire Soundweb London family for scalable system solutions.
• Clear front panel LED indication for phantom power, signal presence, and clip status.
• Bi-directional locate functionality for easy device identification.
• 12 control inputs and 6 logic outputs for GPIO integration with third-party devices.
• Soundweb London Interface Kit for integrating with third-party control systems.
• Configuration, control, and monitoring through HiQnet Audio Architect.

Specifications

Front Panel Led Indicators

• Per Input: Signal Present, CLIP, 48V (Input only)
• Other: COM, STAT, ERR, PWR

Analog Inputs

• 12 electronically balanced on Phnix Combicon removable screw connectors
• Mic/Line Inputs: Nominal gain 0dB, electronically switchable up to +48dB,in +6dB steps
• Input Impedance: 3.0kΩ
• Maximum Input Level: +20dBu with 0dB input gain,+8dBu with 12dB gain
• CMRR: >75dB at 1KHz
• Input Noise (E.I.N.): <-125dBu typical with 150Ω source
• Phantom Power: 48V nominal, selectable per input
• A/D Latency: 37/Fs [0.77ms@48k]

Analog Outputs

• 8 electronically balanced on Phnix/Combicon removable screw connectors
• Maximum Output Level: +19dBu
• Frequency Response: 20Hz-20KHz (+0.5dB/-1dB)
• THD: <0.01% 20Hz to 20KHz, +10dBu output
• Dynamic Range: 108dB typical, 22Hz-22KHz unweighted
• Crosstalk: <-75dB
• Output Impedance: 40Ω balanced and 20Ω unbalanced
• D/A Latency: 29/Fs [0.60ms@48k]

AEC Processing

• 12 independent algorithms
• AEC Processing Latency (Original 8k Algorithm): 2385/Fs [49.69ms@48k]
• AEC Processing Latency (Full Bandwidth Algorithm): 1609/Fs [33.52ms@48k]
• Tail Length: 200 ms
• Average Convergence Rate: 49 dB/s (Net convergence over multiple FFT bands)

Control Ports

• 12 inputs and 6 outputs
• Control Input Voltage: 0 to 4.5v
• Control Input Impedance: 4.7kΩ to +5V (2-wire mode), >1MΩ (3-wire mode)
• Logic Output Voltage: 0 or +5V unloaded
• Logic Output Impedance: 440Ω
• Logic Output Current: 10mA source, 60mA sink

Watchdog Output

• Phnix/Combicon connector for failsafe control
• Opto Output Current: 14mA maximum
• Withstanding Voltage: 80V maximum (Off)
• Series Impedance: 220Ω (isolated)

Control Network

• Connectors: RJ45 Ethernet connector
• Maximum Cable Length: 100m/300ft on Category 5 cable between device and Ethernet switch

BLU link

• Connectors: 2 x RJ45 Ethernet connectors
• Maximum Cable Length: 100m/300ft on Category 5e cable between devices
• Max. Number of Nodes: 60
• Latency: 11/Fs [0.23ms@48k]
• Pass Through Latency: 4/Fs [0.08ms@48k]

Power and Dimensions

• Mains Voltage: 100-240V AC, 50/60Hz
• Power Consumption: <55VA
• BTU Rating: <188 BTU/hr
• Operating Temp. Range: 15 (59) to 35 (95) degrees C (degrees F)
• Dims: (H(U) x W x D): 1.75" (45mm)(1U) x 19" (483mm) x 12.5" (318mm)
• Weight: 9.1 lbs / 4.1 kg