BSS BLU-3 Soundweb London Wall-Mount Controller

The BLU-3 is the plain-language end of a Soundweb London system: a rotary fader and a five-position switch on a wall panel, wired to the control ports on the back of any BLU series processor over two-wire analog. What each control does is decided in software, so the fader typically becomes a zone volume and the switch selects presets such as time-of-day configurations or source options.

Both controls have blank marking areas that take writing directly or a self-adhesive label, which is what makes the panel readable to staff who will never open Audio Architect. The chassis is a single-gang EU form factor.