I have spent my whole life chasing one thing: a room that sounds and looks the way the people who made the film intended. For twenty years that has been my job as well as my hobby — in multiplex auditoriums, in PLF halls, and in living rooms in the Netherlands.
HCP does three things: product management for Procella Audio, calibration on site anywhere in the world, and consulting for manufacturers, integrators and dealers. No installation, no equipment sales agenda — which is exactly why the measurements can be trusted.
Three services, one standard. Most projects use two of them.
Procella Audio for residential Europe and for cinema worldwide, where the room selects the model rather than a price tier — plus the LED walls, screens and processing the room needs around it.
For dealers and integrators who need the right cabinet count the first time, and for manufacturers who need a European product view.
On site, anywhere in the world, in auditoriums and in living rooms. Levels, channel matching, response conformance, phase, subwoofer integration and the immersive layers — aligned to reference, documented, signed off.
You get a report with the numbers on it. Every visit, no exceptions.
Loudspeaker layouts, room acoustics, LED wall and screen selection for manufacturers, integrators and dealers — settled before anything is ordered, while it is still cheap to change.
The hour spent on a layout drawing is the cheapest hour in the project.
Direct-view LED is where cinema is going, and it changes the job. An emissive wall holds its calibrated brightness and black level without a light path to maintain, so the image stays where it was set — months later, not just on handover day.
It also moves the audio problem. Loudspeakers sit on top of and around the wall rather than behind a perforated screen, so the layout has to be designed rather than inherited. That is the part most projects get wrong, and the part I am asked about most.
Projection still has a place and I still calibrate it. But the work worth planning for is LED, and the decisions that matter are made long before the order.
I have handled Procella product management since 2005 — residential Europe, commercial cinema worldwide.
The range is modular, not good-better-best. Room size selects the model — you add cabinets to fill a bigger room rather than paying more for a better badge. It is the reason a 40-seat screening room and a 400-seat auditorium can hold the same reference.
Dedicated rooms and living rooms across Europe. Immersive layouts, correctly sized rather than over-specified.
Multiplex screens worldwide, from standard houses upward, with the cabinet count set by the room.
Large-format halls where headroom, not just level, is the specification.
Layout support, model selection and commissioning help. Ask about the range.
I am Gerard Brouwer. Cinema sound has been the thing I care about since long before it paid the bills, and it is still what I do on my own time.
That is not a sales line, it is the working method. A room either measures up or it does not, and the enthusiasm is what makes you go back and fix the last decibel instead of writing it off. Twenty years in, I have been lucky enough to make it the job: specifying systems, measuring them, and telling manufacturers and integrators the truth about what will work.
HCP is one person by design. You speak to the person who does the work, and the person who signs the report is the person who took the measurements.
There is a reference room here and you are welcome in it, by appointment. Bring your own material — a system that only sounds right on the demo disc is not a reference.
Arrange a visit →HCP does not install. Your integrator builds it; I specify, measure and advise. Keeping those apart is what makes the numbers worth something.
Measuring and aligning the full B-chain on site: levels, channel matching, response conformance, phase and polarity, subwoofer integration and the immersive layers. You get a documented report with the numbers, not a verbal assurance.
No. HCP specifies, measures and advises. Installation stays with your integrator, which keeps the measurement independent of whoever sold the equipment.
An emissive wall holds calibrated brightness and black level without a light path to maintain, so the image stays where it was set. Projection still has a place, but the future work is LED.
Yes. Calibration and consulting are carried out on site worldwide; Procella product management covers residential Europe and commercial cinema globally.
Yes — the demo room in Harderwijk, by appointment. Bring your own material.
Project based, and it depends on screen count, travel and how much of the specification already exists. Tell me the room and I will tell you the number.
One room, one screen or forty. Tell me what you have and what it needs to do, and you will get a straight answer about whether I am the right person for it.