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.
Power Handling
50W
Programme
LF Driver
5.25″
Low Frequency
HF Driver
0.75″
Silk Dome
Ingress Protection
IP54
With optional cover
Features
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5.25″ LF driver with 0.75″ silk dome HF for smooth, natural reproduction
5.25″ LF driver with 0.75″ silk dome HF for smooth, natural reproduction
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50W programme power for higher SPL than the Cuboid 3
50W programme power for higher SPL than the Cuboid 3
✓
Portrait or landscape mounting orientation
Portrait or landscape mounting orientation
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IP54-rated with optional outdoor connector cover (CIPKIT)
IP54-rated with optional outdoor connector cover (CIPKIT)
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Compatible with Optimal Audio SmartAmp DSP-optimised amplification
Compatible with Optimal Audio SmartAmp DSP-optimised amplification
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Works with Zone controllers, ZonePad wall panels, and WebApp
Works with Zone controllers, ZonePad wall panels, and WebApp
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Silk dome tweeter delivers smoother high-frequency response than PEI
Silk dome tweeter delivers smoother high-frequency response than PEI
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Black finish for unobtrusive integration
Black finish for unobtrusive integration
Note
This 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 |
