How a room is proven to work.

Anyone can call a room finished. A Mantis room is signed off against numbers. Before it changes hands, every claim on the drawing is measured against a written target, and the result goes on a commissioning record you keep. These are the published standards every room is held to.

Can every seat see it?

Display size is not a matter of taste or budget. Every seat gets an image it can actually read, sized and verified to the AVIXA display-image-size standard (V202.01, the DISCAS method), which holds dense analytical content to a higher bar than a slide of bullet points. The back row reads the screen. It does not squint at it.

Can every seat hear every word?

A room can be loud and still unintelligible. Speech intelligibility is a number, the Speech Transmission Index (STI, defined in IEC 60268-16), and every seat has to clear the bar, not just the mix position where it always sounds fine. If a seat falls short, that is a target, not an opinion.

Is the level even, front to back?

Uneven sound is what makes a room tiring: the front rows are loud, the back corners drop off, and nobody can say why. Coverage uniformity is held to the AVIXA standard (A102.01), so the front and the back hear within a few decibels of each other. No hot seats, no dead corners.

Does it hold together, end to end?

The individual numbers are necessary but not sufficient. The whole system is checked against a verification list modeled on the AV systems performance verification standard (ANSI/INFOCOMM 10:2013): every source switches, picture and sound stay in sync, the control panel does what it says, the room starts on one touch, and it fails gracefully when the network drops rather than going dark in front of a meeting. Measured and witnessed, not assumed.

The commissioning record

All of it lands on one document: every line, its target, the measured result, signed and dated. That record is two things at once. It is the proof the room meets the design you paid for, and it is the baseline any future engineer, yours or Mantis’s, measures drift against years later. Nothing ships until every line passes.

This is what “proven, not promised” means in practice: the same engineer who designs the room runs these checks and signs the record. How to choose an AV integrator covers the questions that surface whether a firm actually commissions or just leaves. If you have a room in mind, describe what you need.