River Room AB at Aloft by Marriott Chicago Downtown River North
River Room AB is 8.8 x 12.2 m (29 x 40 ft), 107 m² (1,156 sq ft), with a 2.7 m (9 ft) ceiling.
Open in 3D previzPlan view
LED wall that fits
Under a 2.7 m ceiling with 1.5 m trim and 0.3 m clearance you get 1 rows of 500 mm tile flown, which is tight; ground-stack or go lower on trim. Along the 12.2 m wall a Absen A2 Pro wall runs 19 x 1 (3192 x 168 px, 190 kg, 3.5 kW).
| Panel | Pitch | Wall (cols x rows) | Size | Resolution | Weight | Power (max) |
|---|---|---|---|---|---|---|
| 9thPanel DW1.9 S Pro | 1.875 mm | 16 x 2 = 32 | 9.6 x 0.7 m | 5120 x 360 | 154 kg / 339 lb | 8.1 kW, 39 A @ 208 V |
| Absen A2 Pro | 2.97 mm | 19 x 1 = 19 | 9.5 x 0.5 m | 3192 x 168 | 190 kg / 419 lb | 3.5 kW, 17 A @ 208 V |
| Absen A3 Pro | 3.9 mm | 19 x 1 = 19 | 9.5 x 0.5 m | 2432 x 128 | 181 kg / 398 lb | 3 kW, 15 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, River Room AB holds about 52 theater seats, 21 banquet seats at rounds of 10, or 14 classroom seats. Back row in theater is roughly 5.2 m from the downstage edge; the previz checks whether the bottom of the wall clears the heads in front.
Other rooms at Aloft by Marriott Chicago Downtown River North
- River Room9.1 x 19.5 m (30 x 64 ft) · 2.7 m ceiling
- River Room BC8.8 x 14.3 m (29 x 47 ft) · 2.7 m ceiling
- River Room C8.8 x 7.6 m (29 x 25 ft) · 2.7 m ceiling
- Clark Room7.9 x 8.2 m (26 x 27 ft) · 2.7 m ceiling
- Dearborn Room7.9 x 8.2 m (26 x 27 ft) · 2.4 m ceiling
- River Room A8.8 x 6.7 m (29 x 22 ft) · 2.7 m ceiling
- River Room B8.8 x 5.5 m (29 x 18 ft) · 2.7 m ceiling
- Tactic4.3 x 8.5 m (14 x 28 ft) · 2.7 m ceiling
Published dimensions (source), fetched 2026-09-04. All rooms at Aloft by Marriott Chicago Downtown River North · Venues in Chicago