“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.”
Specifications
– **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: 3.5kΩ
– 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 +4dBu, 1kHz, 0dB input gain
– Dynamic Range: 110dB A-weighted, >107dB unweighted
– Crosstalk: <-100dB
– Output Impedance: 120Ω
– 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:**
– Power Requirements: 12-48VDC
– Power Adapter: 100-240VAC 50/60Hz, 12VDC output
– Power Consumption: <55VA
– BTU Rating: <188 BTU/hr
– Operating Temp. Range: 0º to 45ºC (32º to 113ºF)
– Dimensions (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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