BSS BLU-BOB2 - Connection Box / Output Expander

BSS BLU-BOB2 - Breakout box with 8 analog outputs via BLU link

The BSS BLU-BOB2 is an analog output expander for the Soundweb London platform that adds 8 balanced line outputs via the BLU link digital bus (256 channels, low latency and fault-tolerant). Its configuration is extremely simple: using 6 DIP switches, it selects any consecutive block of 8 channels from those available on the BLU link ring, without the need for software. The 19”/1U chassis integrates LED indicators for signal presence per output and power, and uses the same block connectors (Phoenix/Combicon) as the rest of the Soundweb London family.

The BLU-BOB2 integrates into the BLU link ring using two RJ45 connectors (IN/OUT). Using Cat5e cable , the distance between devices can be up to 100 m ; if longer distances are required, the MC-1 fiber optic media converter can be used to exceed 10 km using single-mode . At the audio level, it offers up to +19 dBu output level, THD < 0.01 % (20 Hz–20 kHz @ +10 dBu), typical dynamic range of 108 dB (unweighted) and a D/A latency of 0.58 ms at 48 kHz . It is powered by an external 12 V DC supply (included) and does not require configuration in HiQnet Audio Architect/London Architect .

Main features

• 8 electronically balanced, line-level analog audio outputs .
• DIP selection of any 8-channel block from the ring (256 total channels at 48 kHz; 128 at 96 kHz).
• Low latency, fault-tolerant BLU link , ring connection with RJ45 (IN/OUT).
• Cat5e up to 100 m between devices; single-mode fiber option >10 km with MC-1 converter.
• Front LEDs indicating signal presence per output and power supply.
• 19” 1U chassis ; Phoenix/Combicon connectors for audio and power.
• External 12V DC power supply included; adapter consumption 19W.

Product benefits

• Immediate deployment : Routing is defined solely with DIP switches, without programming.
• Secure scalability : The BLU link ring allows you to expand outputs while maintaining low latency and fault tolerance.
• Professional audio quality : +19 dBu max, THD <0.01%, typical dynamic range 108 dB.
• Easy integration : same hardware and connectors as the rest of Soundweb London equipment.

Use cases

• Expansion of outputs by zones (background music, distribution to power amplifiers or 70/100 V lines).
• Sound reinforcement and AV installations that require additional outputs near racks or remote areas.
• Distributed systems with long fiber spans (MC-1) between distant buildings or racks.

Frequently Asked Questions

• Is it configured with Audio Architect? No. Output assignments are made using DIP switches only.
• How many channels does the BLU Link support? 256 at 48 kHz (or 128 at 96 kHz) per ring; the BLU-BOB2 uses selection in blocks of 8 consecutive channels.
• What is the maximum distance between nodes? Up to 100 m with Cat5e; with MC-1, it can exceed 10 km over single-mode fiber.
• Can I mix BLU-BOB1 and BLU-BOB2? Yes; they share connections and signaling. BLU-BOB1 is half-width; BLU-BOB2 is 1U/19”.

Description for projects

BSS BLU-BOB2 output expander (break-out box) for Soundweb London . 8 balanced analog outputs on Phoenix/Combicon , max level +19 dBu , THD <0.01% (20 Hz–20 kHz @ +10 dBu), typical dynamic range 108 dB (22 Hz–22 kHz, unweighted), D/A latency 28/Fs . BLU link bus (2× RJ45), up to 100 m Cat5e; fiber option > 10 km with MC-1 . Channel selection by 6 DIP switches ; 1U/19” . Power supply 12 V DC (adapter included), 19 W.