What is BLU link, and how many devices can I network together?

BLU link is BSS Audio's digital audio networking protocol that carries up to 48 channels of audio over standard Category 5e cabling to distances of 100 meters, or over 10 kilometers using fiber media converters. A single BLU link bus can support up to 60 compatible devices, making it scalable for large live-sound or installed-audio systems.

What is the latency, and is it suitable for live performance?

Pass-through latency is 0.08ms at 48kHz, which is imperceptible in live sound and real-time monitoring applications. This ultra-low latency makes the BLU-50 ideal for touring venues, distributed PA systems, and any time-critical live or studio monitoring scenario.

What connectors and audio specs should I expect?

Four balanced inputs and four balanced outputs use removable Phoenix Mini Combicon screw connectors. Maximum input and output levels are +20dBu, dynamic range is 110dB, THD is 0.005% typical at +4dBu, input gain is configurable in 6dB steps up to +48dB, and phantom power is selectable per channel at 48V.

How can I power the BLU-50, and what mounting options are available?

The unit includes a 12VDC power supply and supports 12–48VDC terminal block connection or PoE+ via Ethernet. Mounting options include a half-rack width with rack mount kit, undertable bracket, and wall-mount bracket, making it flexible for any installation environment.

What control and integration features does it offer?

The BLU-50 provides 12 control inputs, six logic outputs, and an RS-232 port for comprehensive system integration with mixers, processors, lighting, and automation systems in professional installs and live-sound rigs.

BSS BLU-50 I/O Device

The BSS BLU-50 is a compact half-rack audio interface built for live sound engineers and system operators managing networked audio installations. Its flexible mounting options—rack, undertable, or wall-mounted—adapt to any venue or touring setup. This device excels in systems requiring remote I/O expansion over standard Category 5e cabling, delivering transparent analog signal conversion with minimal latency for dependable on-stage and touring reliability.

Connectivity & Network Architecture

The BLU-50 integrates into BSS Audio's BLU link digital audio network, supporting up to 48 channels of audio over standard Category 5e cabling at distances up to 100 meters, or over 10 kilometers using fiber media converters. A single bus can accommodate up to 60 compatible devices, making this ideal for large-scale distributed audio systems in theaters, clubs, festivals, and touring productions. The unit also features 12 control inputs, six logic outputs, and an RS-232 port for comprehensive system integration and remote control.

Audio Performance & Signal Path

The analog signal path delivers professional audio quality with four balanced inputs and four balanced outputs on removable Phoenix Mini Combicon connectors for quick field swaps and touring setups. Input gain is software configurable in 6dB steps up to +48dB per channel, with phantom power selectable per channel at 48V nominal. Output specifications include +20dBu maximum level, 110dB dynamic range, and 0.005% THD typical at +4dBu. Pass-through latency is exceptionally low at 0.08ms at 48kHz, ensuring real-time performance in time-critical live sound applications where every millisecond matters.

Key Features

Half-rack width form factor with rack mount kit, undertable, and wall-mount bracket options
Four electronically balanced analog inputs on Phoenix Mini Combicon removable screw connectors
Four electronically balanced analog outputs on Phoenix Mini Combicon removable screw connectors
Software configurable gain in 6dB steps up to +48dB per channel with per-channel phantom power at 48V
Input impedance 3.5k Ohms; maximum input level +20dBu at 0dB gain
Maximum output level +20dBu with frequency response 20Hz–20kHz (+0.5dB/−1dB)
BLU link digital audio networking: 48 channels over Category 5e up to 100 meters, or over 10km via fiber converters
Up to 60 compatible devices can share channels on a single BLU link bus
12 control inputs, six logic outputs, and RS-232 connectivity
Powered via included 12VDC supply, 12–48VDC terminal block, or PoE+ via Ethernet
Pass-through latency 0.08ms at 48kHz; A/D latency 0.77ms at 48kHz
Dynamic range 110dB with THD 0.005% typical at +4dBu, 1kHz

The BLU-50 combines transparent audio conversion, extensive networking capability, and flexible installation options, making it a dependable choice for live sound engineers, touring crews, and system operators managing professional distributed audio systems across venues and installations.