BSS BLU-50 | 4×4 Signal Processor with BLU Link


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BSS BLU-50 | 4x4 Signal Processor with BLU Link

Fixed I/O Devices

The BLU-50 is a half-rack width processor that offers a fixed configuration of four inputs and four outputs, configurable signal processing, logic processing and BLU link. The device can be powered with the included 12VDC power supply but can accept 12-48VDC via a terminal block connector. The BLU-50 can also be powered with PoE+ via the Ethernet port, allowing the device to be powered, configured, controlled and monitored using a single Cat 5e cable.
The analog inputs of the BLU-50 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.
The BLU-50 features BLU link, 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 10km (6.2 miles) using single mode fiber.
The BLU-50 is configured, controlled and monitored from HiQnet Audio Architect™ or HiQnet London Architect™ and is compatible with other members of the Soundweb London family. Its 48 channel BLU link bus represents channels 1-48 of the larger 256 channel BLU link bus when integrated with the BLU-800, BLU-320, BLU-160, BLU-120, BLU-BIB and BLU-BOB devices. Up to 60 BLU link compatible devices can share channels on a single bus.
As with other Soundweb London devices, 12 Control Inputs, six Logic Outputs and an RS-232 port allow the BLU-50 to be integrated with other compatible devices.

Key Features

  • 4 Analog Inputs (with 48v Phantom Power per Channel)
  • 4 Analog Outputs
  • Configurable Signal Processing
  • 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 London Architect
  • 12-48VDC or PoE+ Powering Options (12VDC Power Supply Included)
  • Rack Mount, Surface Mount and Desk Mount Installation Options

Technical Specifications

Front Panel Led Indicators:
Per Input: Signal Present, CLIP, 48V (Input only)
Analog Inputs: 4 electronically balanced on Phoenix Mini Combicon removable screw connectors
Mic/Line Inputs: Nominal gain 0dB, electronically switchable up to +48dB,in +6dB steps
Input Impedance: 3.5kΩ
Maximum Input Level: +20dBu with 0dB input gain,+8dBu with 12dB gain
CMRR: >45dB at 1KHz
Input Noise (E.I.N.): <-128dBu typical with 150Ω source
Phantom Power: 48V nominal, selectable per input
A/D Latency: 37/Fs [0.77ms@48k]
Analog Outputs: 4 electronically balanced on Phoenix Mini Combicon removable screw connectors
Maximum Output Level: +20dBu
Frequency Response: 20Hz-20KHz (+0.5dB/-1dB)
THD: 0.005% typical at +4 dBu, 1kHz, 0 dB input gain
Dynamic Range: 110dB A-weighted, >107dB unweighted
Crosstalk: <-100dB
Output Impedance: 120Ω
D/A Latency: 29/Fs [0.60ms@48k]
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:
Power Requirements: 12-48VDC
Power Adapter: 100-240VAC 50/60 Hz, 12VDC output
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): 1.625” (41mm) x 8.63” (219mm) x 7.75” (197mm)
Weight: 2.82 lbs / 1.28 kg


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