We sell the requirement, not a brand

Display size and pixel pitch

These two questions sit at the centre of the purchase, and both are answered by calculation. The "so many mm equals so many metres" rules circulating online are each a manufacturer's own advice and they differ by up to a factor of three; AVIXA has no standard for it. We measure the space and advise from the content — the smallest pitch is not automatically right, and there is no sense paying for a difference nobody can see from six metres.

Acoustics and intelligibility

Changing microphones and loudspeakers in a reverberant hall does not fix it: a sound system makes the room audible, and if the room rings, a more powerful system gives you a louder ring. There are measurable targets: 0.4-0.6 seconds of reverberation in a small conference room, and background noise no higher than 35-40 dBA. The right order is measurement, then acoustic treatment, then the sound system — done the other way round the money usually goes on both and the result still does not arrive.

Planning the network with IT

AV over IP and Dante are real-time traffic, resting on multicast, timing and prioritisation. The source of "the network got slow" is usually configuration rather than bandwidth. So we design the AV network together with the client's IT team: its own VLAN, QoS defined from the start, switch settings reviewed. AV traffic added to a network that was not prepared for it always looks like the culprit.

Writing the specification

In public and corporate procurement the specification itself decides the outcome. One written to measurable criteria, not locked to a single brand, keeps the competition open and leaves no ambiguity about what will be accepted at handover. We work on technical specifications and acceptance criteria; AVIXA's performance verification and documentation standards can be referenced.

Frequently Asked Questions