BLU-325 har 4 slots for lyd ind- og udgangskort. Den har ingen processering, men signalrouting mellem lyd ind- og udgange, og netværk programmeres fra PC-programvaren London Architect som kan downloades gratis fra BSS Audios hjemmeside. Parametre kan styres i sanntid fra London Architect, fra 3-parts styresystemer over RS-232 eller Ethernet TCP, eller direkte gennem enhedens GPIO. BLU-326 har BLU-LINK og Dante for lyd over netværk, og programmerbar logik.
The Soundweb Contrio EC-4B is an Ethernet wall controller for use in Harman HiQnet systems. The EC-4B can control and monitor parameters within BSS Audio Soundweb London and other HiQnet devices, including Crown DCi series amplifiers.
The Soundweb London Analog Input Card is designed to populate any of the four card slots on Soundweb London BLU-800, BLU-805, BLU-806, BLU-320, BLU-325, BLU-326, BLU-160, BLU-120, BLU-80, BLU-32 and BLU-16 devices. This analog card enables Soundweb London devices to receive microphone / line level signals. The Soundweb London Analog Input Card offers Phantom Power, configurable per channel and software controlled analog gain in 6dB steps from 0dB to 48dB.