Rated 4.9 (79 reviews)
The Optimal Audio Cuboid 5 is a versatile two-way passive loudspeaker built for mid-sized commercial audio installations. With a 5.25-inch LF driver and 0.75-inch silk dome tweeter delivering 50W programme power, it provides fuller low-end extension and higher SPL than the Cuboid 3, making it well suited to bars, restaurants, conference rooms, and retail spaces. Also available in white.
50W
Power Handling · Programme
5.25″
LF Driver · Low Frequency
0.75″
HF Driver · Silk Dome
IP54
Ingress Protection · With optional cover
Features
5.25″ LF driver with 0.75″ silk dome HF for smooth, natural reproduction
50W programme power for higher SPL than the Cuboid 3
Portrait or landscape mounting orientation
IP54-rated with optional outdoor connector cover (CIPKIT)
Compatible with Optimal Audio SmartAmp DSP-optimised amplification
Works with Zone controllers, ZonePad wall panels, and WebApp
Silk dome tweeter delivers smoother high-frequency response than PEI
Black finish for unobtrusive integration
NoteThis is the low-impedance passive version. For 70V/100V distributed audio systems, see the Cuboid 5TX variant. The optional CIPKIT connector cover is required to achieve the full IP54 rating for outdoor or exposed installations.
Specifications
| Model | Cuboid 5 Black |
| SKU | CUBOID5-B |
| Speaker Type | Two-Way Passive |
| LF Driver | 5.25″ |
| HF Driver | 0.75″ Silk Dome |
| Power Handling | 50W |
| Ingress Protection | IP54 (with optional connector cover) |
| Mounting | Portrait / Landscape |
| Colour | Black |
