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— LED Wall · Fine-pitch indoor

Christie Velvet Apex II 1.5: cabinet grid & viewing distance

Problem. A 4 x 2.25 m (16:9) indoor wall needs a cabinet layout that lands close to the target size without the calculator quietly rounding away the difference. Christie Velvet Apex II 1.5, at 1.56 mm pixel pitch, resolves this by snapping the requested area to a whole-cabinet grid and reporting the actual built dimensions and native resolution alongside it.

Answer. For a 4 x 2.25 m target, the calculator resolves Christie Velvet Apex II 1.5 to a 7 x 7 cabinet grid, giving an actual wall of 4.2 x 2.36 m. Native resolution comes out to 2688 x 1512 (approximately 4.1 MP), with a closest-seat default of 3 m sitting inside the optimal viewing band.

02 / In depth

How this preset reads — the engineering view.

Pixel pitch is the variable that drives both numbers on this page: at 1.56 mm, Christie Velvet Apex II 1.5 sets the cabinet grid needed to fill 4 x 2.25 m, and it sets the optimal viewing band for video content at roughly 1.6-3.1 m (pitch x 1.0 to 2.0). The 3 m default closest seat sits comfortably inside that band.

At 800 nits, this cabinet is sized for controlled indoor environments rather than daylight-facing or high-ambient spaces. Wall-mount and front-service access shape the install and maintenance approach, and the resulting native resolution of 2688 x 1512 (about 4.1 MP) suits sharp close-viewing content such as branded lobby walls, control-room or briefing displays, and indoor broadcast-style backdrops.

Drag the wall-size input to see the cabinet grid and native resolution recompute live. Because cabinets are a fixed module size, the actual built wall can differ slightly from the target dimensions you type in — the calculator always reports the true, snapped-to-grid outcome rather than the raw target.

This calculator sizes the LED wall itself. It does not size structural or rigging load, power and data cable runs, processor or scaler selection, how source content maps to the panel's native resolution, or ambient-light calibration — each of those needs separate engineering sign-off.

What this preset deliberately does not solve

  • Cabinet snapping means the actual wall size will rarely match a typed target exactly; treat the reported 4.2 x 2.36 m as the real figure to design around.
  • The 1.6-3.1 m viewing band is a general pitch-based guideline for video content, not a substitute for a site-specific sightline study.
  • 800 nits is read against a controlled indoor setting only; this preset says nothing about performance in daylight or high-ambient-light locations.

How this preset differs from its siblings

Fine-pitch indoor LED covers a wide span of pitch, brightness, and service options, and those differences change the sizing math, not just the spec sheet. At 1.56 mm, Christie Velvet Apex II 1.5 produces a different cabinet grid and a tighter close-viewing band than coarser-pitch indoor products, while its 800-nit, front-service, wall-mount profile targets controlled-environment installs rather than brighter or rear-access configurations. This preset exists so a visitor searching for this specific cabinet sees its own grid and viewing-distance outcome rather than a generic fine-pitch-indoor default.

03 / Hydrated calculator

Try the configuration — live.

The calculator below is preloaded with this preset’s state. Adjust any input — your URL stays shareable.

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