Rated 4.9 (120 reviews)
The Optimal Audio Up 4O is an open-back 4-inch ceiling speaker for budget-conscious installations where a sealed backcan is not required. Rated at 6W on 100V line with 130° conical coverage, it provides clear background music and paging in retail, office and hospitality settings where fire-rated backcans are not mandated by the ceiling construction.
4″ (105mm)
Driver Size · Full-range
6W
Power Handling · 100V line
130°
Coverage · Conical
NoteThis is an open-back model with no backcan. Where fire-rated ceiling penetrations are required, consider the Up 4 (with integrated steel backcan) or the Up 4S (shallow backcan) instead.
Features
4-inch (105mm) full-range driver
Open-back design for cost-effective installations
130° conical coverage for wide, even sound distribution
70V and 100V transformer taps for flexible system design
Low cost per point for large-scale rollouts
White finish blends into standard ceiling tiles
Specifications
| Model | Up 4O |
| SKU | UP4O-W |
| Type | Open-back passive ceiling speaker |
| Driver | 4″ (105mm) full-range |
| Power Handling | 6W |
| Line Voltage | 70V / 100V |
| Coverage | 130° conical |
| Backcan | None (open-back) |
