P1.2 HD Wall now ships with 8K signal chain

What the rooms were asking for

The original P1.2 controller was a known good design. Reliable, well-supported, broad colour calibration tooling, friendly to most off-the-shelf processors. The decision to rebuild it was not driven by the cabinet itself — it was driven by the rooms it was being installed into. Three patterns kept showing up in 2025 customer requests:

• Network operations centres consolidating multiple legacy walls into one large 8K canvas.
• Broadcast studios moving to UHD-2 source masters and refusing the latency of an outboard scaler.
• Mission-control rooms with redundant fibre runs that wanted the input layer matched to the cabinet, not bolted on.

Each of those rooms had bought P1.2 cabinets before. None of them wanted to switch to a different fine-pitch family just for the input layer. The brief from the factory side was simple: keep the cabinet, rebuild the chain.

Three components, one cabinet

The input controller now accepts dual SFP+ fibre at 10 Gbps per cabinet, replacing the previous copper-only HDMI-input board. The on-board processing module moved from a single FPGA to a paired FPGA layout, which gives the wall enough parallel capacity to handle 7680×4320 at 60 Hz without dropping frames at the cabinet boundaries. The output layer now frame-locks across the wall by default — previously this required a separate sync generator.

The combined result is that the wall carries the full 8K signal end-to-end inside the cabinets themselves. No external scaler. No outboard sync. The room just sees a fibre run going into the wall and a clean 7680×4320 canvas coming out, calibrated.

The cabinets did not need a rebuild. The room they walk into did. The 8K chain meets the room where it already is.

Two-pass colour, one tool

The colour calibration workflow had to be re-tuned for the new on-board processing module. The old workflow assumed a single FPGA pass and a known set of latency offsets. The paired-FPGA layout splits the wall into left-half and right-half processing zones, so calibration now runs as two passes and merges in the controller.

For the operator on the install side, this is invisible — the calibration tool is the same one, with the same UI. Internally though, the calibration data file format added a new section to carry the merge offsets. Walls in the field shipped before May 15 do not need to be recalibrated for the change to take effect — the new file format is a superset.

Two fibre runs, no scaler rack

For installers, the shipping difference is small. Two fibre runs per cabinet instead of one HDMI plus one sync. The cabinets fit the same frame, the same mounting hardware, the same pixel pitch as before — nothing changed on the front face. Power draw is within 6% of the previous controller, so existing UPS sizing carries over. The visible change is at the cable backplane only.

For the room, the difference is bigger. The previous wall needed an external scaler rack between the source and the cabinet. The 8K-chain wall removes that rack. The pre-sale CAD package for new installs has been updated to reflect the simpler cabling diagram — support & assistance carries the new template.

Standard, immediate, swap-kit covered

The 8K chain is now standard on every P1.2 HD Wall cabinet leaving the line. There is no "upgrade SKU" — the previous controller has been retired. For existing P1.2 walls already in the field, the controller swap is field-installable; the factory ships a swap kit (controller board + new SFP+ cabling). Lead time on a new wall order is unchanged at four to six weeks ex-works.

For questions on installs already in flight, on calibration migration, or on whether the swap kit is right for an existing wall, the route is the engineering team directly — not a form queue. Contact ARECH → and the message lands with the people who built the chain.