Amtune Signal Chains for Exhibition and Convention Centres

An exhibition centre has an unusual AV brief: the building is permanent, the shows are not. Halls subdivide with movable walls, an organiser arrives with its own playback, cameras and LED, load-in happens overnight, and the venue's technical team may be one person on a show day. Two customers have to be satisfied at once - the organiser, who wants a clean interface and predictable behaviour from equipment they did not buy, and the venue, which owns a backbone expected to last a decade across hundreds of events. Any design that only serves one of them fails the other within a season. Add the physical layer to that: carpeted floors, retractable seating, ceiling grids that carry rigging loads but not cable trays, and a plant room that is often a store cupboard.

The video architecture that works separates backbone from show. A central matrix or AV-over-IP core holds venue-owned sources - wayfinding, hall signage, camera feeds, emergency messaging - and presents each hall with a fixed set of ports at a known location. Inside a hall, HDBaseT point-to-point links serve runs that never change: fixed projectors, permanent displays, the organiser desk position. Where a movable wall can split a hall in two, AV-over-IP decoders make more sense than copper, because re-addressing a decoder is a software task and re-terminating a 60-metre run is not. Every output gets locked EDID matching the device actually attached, and the 4K60 4:4:4 budget is calculated per hall, not per building.

Audio is where halls quietly fail. A single Dante or AES67 domain spanning the whole building is convenient until one organiser's console starts advertising clock and the venue's paging loses sync. Amtune specifies per-hall audio zones with a venue-owned boundary device that keeps paging and evacuation paths read-only and outside anything an external operator can re-patch. Presets do the rest: a hall-combined state, a hall-split state, a load-in state with announcements only, and a show state that hands the organiser a defined send and return. On the power side, PoC and PoE budgets are allocated per hall against breaker capacity, because LED walls and moving lights arrive on the same distro as the AV rack.

Amtune builds the pieces this pattern needs: seamless hybrid matrices for the backbone, HDBaseT extenders for fixed runs, AV over IP decoders for subdividable halls, Dante and AES67 audio for zone routing and multi-viewers for the technical desk. Frames, rack layouts and port maps are drawn so that a hall can be re-addressed without returning to the manufacturer, and units can be supplied under the venue's own brand where a portfolio estate wants one label on every hall. Documentation is written for a one-person show day. Enquiries: sales@amtune.com.