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Rosemont Ballroom at Hyatt Regency O'Hare Chicago

Published dimensions

Rosemont Ballroom is 37.4 x 37.4 m (123 x 123 ft), 1,399 m² (15,057 sq ft), with a 3.1 m (10 ft) ceiling.

Open in 3D previz

Plan view

37.4 m / 123 ft37.4 m / 123 ft grid 5 m

LED wall that fits

Under a 3.1 m ceiling with 1.5 m trim and 0.3 m clearance you get 2 rows of 500 mm tile flown, which is tight; ground-stack or go lower on trim. Along the 37.4 m wall a Absen PL2.5 Plus V2 wall runs 59 x 2 (11800 x 400 px, 920 kg, 18.9 kW).

PanelPitchWall (cols x rows)SizeResolutionWeightPower (max)
Absen KLCOB 0.780.78 mm49 x 3 = 14729.4 x 1 m37632 x 1296662 kg / 1,458 lb13 kW, 63 A @ 208 V
Absen PL2.5 Plus V22.5 mm59 x 2 = 11829.5 x 1 m11800 x 400920 kg / 2,029 lb18.9 kW, 91 A @ 208 V
Absen PL3.9 Plus V23.9 mm59 x 2 = 11829.5 x 1 m7552 x 256920 kg / 2,029 lb16.5 kW, 79 A @ 208 V

Wall sizing assumes 1.5 m trim to the bottom edge, 0.3 m clearance under the ceiling, and a wall no wider than 80% of the longest wall. Weight and power are tile totals from the panel spec sheet; add processing, rigging, and cable.

Seating estimate

After a 12 x 7 m stage, Rosemont Ballroom holds about 2,921 theater seats, 1,195 banquet seats at rounds of 10, or 821 classroom seats. Back row in theater is roughly 30.4 m from the downstage edge; the previz checks whether the bottom of the wall clears the heads in front.

Other rooms at Hyatt Regency O'Hare Chicago

Published dimensions (source), fetched 2026-09-05. All rooms at Hyatt Regency O'Hare Chicago · Venues in Chicago

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