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™ 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.
Name: The name of this item
Class Name: The type of this device
Device ID: The ID number of this device
Acknowledge (ACK): Set to 'yes' to inform the London device that is should expect acknowledgement of the messages being sent.
Baud Rate: Drop-down selection for the Baud Rate
Data Bits: The number of bits for data
Parity: The parity
Stop Bits: The number of stop bits
Dynamic Meters: The number of Dynamic Meters to use in this device. Hover the cursor over a wire in the design while online and a Dynamic Meter displays the signal level.
Logic Change Block: If enabled, only Logic Sources and Ends will be written to the change block. Only enable if there are performance issues with logic.
Logic Subscription: If enabled, only Logic Sources and Ends will be subscribed to. Only enable if there are issues with logic.
Recall Presets on Startup: When enabled, presets assigned to control ports will be recalled when the device is powered on.
Control Port Subscribe: When enabled, force control ports to subscribe to controlled parameters.
Sample Rate Pulldown: Sample rate pulldown frequency when an external sync source is being used
Front Panel Led Indicators
Per Input: Signal Present, CLIP, 48V (Input only)
Other: COM, STAT, ERR, PWR
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: 3.5k Ohms
Maximum Input Level: +20dBu with 0dB input gain,+8dBu with 12dB gain
CMRR: >45dB at 1KHz
Input Noise (E.I.N.): <-128dBu typical with 150 ohm 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: 120 Ohms
D/A Latency: 29/Fs [0.60ms@48k]
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: Phoenix/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: 5 (41) 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