Control systems built to last
We design, program, and deploy AV control systems for commercial spaces. From Q-SYS programming to full system installation, every project gets clean code and reliable infrastructure.
End-to-end AV systems
From initial design through to commissioning. Programming, installation, and ongoing support for commercial AV environments.
Control systems programming
Q-SYS, Crestron, and Extron control system design and Lua scripting. Clean, documented code that the next programmer can actually read.
Installation
Rack builds, cable infrastructure, and hardware deployment. Systems installed to spec with proper labelling and documentation.
Audio engineering
DSP configuration, speaker system tuning, and acoustic treatment. Sound systems that perform consistently across every zone.
Plugin development
Custom Q-SYS plugins and UCI components. Production-tested tools that solve real problems, available off the shelf or built to order.
Recent projects
View all →Tools built from real projects
Each plugin started as a solution to a problem on a live job. Tested in production, documented properly, and ready to drop into your design.
Matrix Router Pro
$49 AUDUp to 128x128 I/O support with named presets, signal presence indicators, and route lock/protect. Designed for systems where native routing gets unwieldy.
Display Manager Pro
$35 AUDMonitor and control multiple displays from a single UCI. Supports RS-232, IP, and CEC across Samsung, LG, NEC, and Sony. Includes scheduling and health monitoring.
Sean Mulcahy
AV programmer and systems integrator based in Australia. I build control systems that are clean, documented, and designed to be maintained by whoever comes after me.
Q-SYS, Crestron, and Extron certified. Working with integrators and consultants across Australia and New Zealand.
More about me →Got a project in mind?
Always happy to talk through a system design, answer Q-SYS questions, or scope out a new build.
Let's build something →